Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
173 pieces in 111 part and color combinations, plus 2 minifigures.
LEGO counts 173 pieces. This inventory comes from a separate parts catalog and lists 182, including the 9 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
LEGO's request form asks for the set number (10728) and each piece's element ID, both listed above.
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Piece checklist
White
40 pieces
Animal, Cat, Sitting with Medium Azure Eyes, Collar, Bright Pink Ears, Pendant, Light Bluish Gray Markings PrintWhitePart 11602pr0009Element 6133639 or 6035458×1
Animal, Rabbit / Bunny, Baby Sitting with Black Eyes and Black Nose PrintWhitePart 18852pr0001Element 6099712×1
Brick 1 x 2WhitePart 3004Element 6548257 or 4613964×1
Brick 1 x 4WhitePart 3010Element 6550135 or 301001×1
Brick Curved 1 x 4 x 1 1/3 No StudsWhitePart 10314Element 6294284 or 6019727×1
Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud]WhitePart 60475bElement 6321349 or 4533763×3
Brick Special 1 x 2 with HandleWhitePart 30236Element 4140626×2
Brick Special 1 x 2 with Vertical Clip [Open O Clip]WhitePart 30237bElement 6320300 or 6092873×2
Cupboard 2 x 3 x 2 with Hollow StudsWhitePart 92410Element 4619665×1
Door Frame 1 x 4 x 6 Type 2WhitePart 60596Element 6262945 or 4541956×2
Door Frame 2 x 4 x 6WhitePart 60599Element 4528140 or 4520843×1
Fence Lattice 1 x 4 x 1WhitePart 3633Element 4550171 or 363301×2
Hinge Plate 1 x 4 Locking Dual 1 FingerWhitePart 44568Element 6276043 or 4193479×1
Hinge Plate 3 x 4 Locking Dual 2 Finger, 9 TeethWhitePart 44570Element 4261694 or 4194558×1
Panel 1 x 4 x 1 with Rounded Corners [Thin Wall]WhitePart 15207Element 6552215 or 6514504×2
Panel 1 x 4 x 3 with Pink '+' and Blue Paw PrintWhitePart 60581pr0002Element 6148268×3
Plate 1 x 4WhitePart 3710Element 6552108 or 6548266×2
Plate Special 2 x 2 with Groove and Center Stud (Jumper)WhitePart 87580Element 6550157 or 6126046×1
Tile 1 x 4 with Blue Headlights and Grille with Heart PrintWhitePart 2431pr0076Element 6102800×1
Tile 2 x 4 with Friends Animal Hospital PrintWhitePart 87079pr0093Element 6152007×1
Tile 2 x 4 with GrooveWhitePart 87079Element 6548271 or 4560178×1
Tile Round 2 x 2 with Clock PrintWhitePart 14769pr0001Element 6052201×1
Tile Special 1 x 2 with HandleWhitePart 2432Element 243201×1
Wheel 11 x 12 with Hole Notched for Wheels Holder PinWhitePart 6014bElement 4170457×4
Window 1 x 2 x 3 Pane with Thick Corner TabsWhitePart 60608Element 6171058 or 4520842×2
Window 2 x 4 x 3 Frame with Hollow StudsWhitePart 60598Element 4584888×1
Medium Azure
19 pieces
Brick 2 x 4Medium AzurePart 3001Element 6603313 or 4625629×1
Brick Curved 1 x 3 x 2Medium AzurePart 33243Element 6583818 or 6146870×2
Brick Curved 2 x 3Medium AzurePart 6215Element 6146866×11
Brick Sloped 45° 2 x 4Medium AzurePart 3037Element 6036490×1
Plate 2 x 4Medium AzurePart 3020Element 6603317 or 6013826×1
Plate Special 4 x 4, Studs on One Edge Plain]Medium AzurePart 6179Element 6357614 or 6151414×1
Tile 1 x 3Medium AzurePart 63864Element 6097492×1
Tile Special 1 x 2 with HandleMedium AzurePart 2432Element 6121919×1
Light Aqua
13 pieces
Brick 2 x 4Light AquaPart 3001Element 6426721 or 6146863×3
Equipment Baby Bottle with HandleLight AquaPart 18855Element 6412881 or 6102882×1
Equipment Medical ClipboardLight AquaPart 98393b×1
Equipment Medical Feeding BottleLight AquaPart 98393f×1
Equipment Medical Ice PackLight AquaPart 98393g×1
Equipment Medical Neckwear StethoscopeLight AquaPart 98393a×1
Equipment Medical OtoscopeLight AquaPart 98393c×1
Equipment Medical PenLight AquaPart 98393j×1
Equipment Medical SpoonLight AquaPart 98393e×1
Equipment Medical SyringeLight AquaPart 98393i×1
Equipment Medical ThermometerLight AquaPart 98393d×1
Light Bluish Gray
12 pieces
Animal, Rabbit / Bunny Sitting with Blue Eyes, Black Nose and Mouth and White Beard PrintLight Bluish GrayPart 98387pr0002Element 6022491×1
Brick Curved 4 x 1 Double, No StudsLight Bluish GrayPart 93273Element 4622803×2
Dish 3 x 3 Inverted [Radar]Light Bluish GrayPart 43898Element 6070564 or 4568360×1
Plate Special 1 x 2 with Clip Horizontal on EndLight Bluish GrayPart 63868Element 6319336 or 4535738×1
Steering Stand 1 x 2 with Black Steering WheelLight Bluish GrayPart 3829c01Element 4226995×1
Tap 1 x 1 without Hole in SpoutLight Bluish GrayPart 4599bElement 4211503×2
Tile Round 2 x 2 with Bottom Stud HolderLight Bluish GrayPart 14769Element 6052200×2
Wheel Holder, Plate, Round 2 x 2 Thin with ClipsLight Bluish GrayPart 2655Element 6152344 or 4211373×2
Medium Lavender
12 pieces
Brick 1 x 2Medium LavenderPart 3004Element 6015060 or 4623598×2
Brick Curved 1 x 2 x 1 1/3 with Curved TopMedium LavenderPart 6091Element 6411359 or 4625616×2
Brick Round Corner 4 x 4 Macaroni Wide with 3 StudsMedium LavenderPart 48092Element 6252559 or 6107742×2
Plate 2 x 4Medium LavenderPart 3020Element 4619516×4
Plate 2 x 6Medium LavenderPart 3795Element 6015115 or 4625027×1
Vehicle Base 4 x 10 x 2 1/2 with Mudguards, Wheel Pins and 6 x 2 Centre Recess with 3 Holes, Medium Lavender Wheel HoldersMedium LavenderPart 12622c04Element 6102832×1
Tan
9 pieces
Animal, Hedgehog with Eyelashes and Dark Brown Spines PrintTanPart 98389pr0002Element 6102907 or 6022468×1
Brick Round 2 x 2 [Grill]TanPart 92947Element 4650647 or 4612717×2
Brick Special 1 x 2 with 2 Studs on 1 SideTanPart 11211Element 6024495×2
Brick Special 1 x 2 with Vertical Clip [Open O Clip]TanPart 30237bElement 6335307 or 6127742×1
Brick Special 1 x 4 with 4 Studs on One SideTanPart 30414Element 4201062 or 4177990×1
Plate 4 x 4TanPart 3031Element 4243824 or 4113919×1
Plate Special 2 x 2 with Groove and Center Stud (Jumper)TanPart 87580Element 4565387×1
Trans-Light Blue
8 pieces
Brick Round 1 x 1 Open StudTrans-Light BluePart 3062bElement 6514238 or 6238677×1
Cupboard 2 x 3 x 2 DoorTrans-Light BluePart 4533Element 6514073 or 6253216×1
Panel 1 x 2 x 1 [Rounded Corners]Trans-Light BluePart 4865bElement 6514122 or 6246890×5
Windscreen 2 x 4 x 2Trans-Light BluePart 3823Element 6581802 or 6253682×1
Bright Pink
7 pieces
Brick 1 x 2Bright PinkPart 3004Element 4517993 or 4245296×1
Brick 2 x 2Bright PinkPart 3003Element 4550359 or 4245307×1
Brick 2 x 4Bright PinkPart 3001Element 4520632 or 4497168×1
Brick Round 1 x 1 Open StudBright PinkPart 3062bElement 6099375×2
Equipment Dish / Plate / Bowl 3 x 3 [Plain]Bright PinkPart 6256Element 4618629 or 4222938×1
Plate 1 x 3Bright PinkPart 3623Element 6499872 or 6036788×1
Bright Light Yellow
5 pieces
Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric RidgesBright Light YellowPart 2454a×2
Brick 2 x 2 x 3Bright Light YellowPart 30145Element 6109695×2
Panel 1 x 6 x 6 with Window and Pink Window Frame and Tulips PrintBright Light YellowPart 15627pr0012Element 6146883×1
Reddish Brown
5 pieces
Plate 1 x 4Reddish BrownPart 3710Element 4211190×2
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Reddish BrownPart 87580Element 4565394×1
Window 1 x 2 x 3 Pane Latticed with Thick Corner TabsReddish BrownPart 60607Element 6084571×2
Trans-Clear
5 pieces
Door 1 x 4 x 6 Smooth with Square Handle PlinthTrans-ClearPart 60616aElement 4521504×1
Glass for Window 1 x 4 x 6Trans-ClearPart 57895Element 6581671 or 6256058×2
Panel 1 x 2 x 3 [Side Supports / Hollow Studs]Trans-ClearPart 87544Element 6507949 or 6211814×1
Panel 1 x 2 x 3 [Side Supports / Hollow Studs] with Heart Read Out Key Pad, Paw and Heart PrintTrans-ClearPart 87544pr0002Element 6239395 or 6146945×1
Black
4 pieces
Tyre 21 x 12 with Offset Tread Small Wide and Center BandBlackPart 87697Element 6575727 or 4568644×4
Bright Light Orange
4 pieces
Tile 1 x 2 with GrooveBright Light OrangePart 3069bElement 4622062×2
Tile 2 x 2 with GrooveBright Light OrangePart 3068bElement 6020147 or 4525871×2
Dark Orange
4 pieces
Brick Curved 2 x 2 x 2/3Dark OrangePart 15068Element 6104344×2
Brick Sloped 45° 2 x 2Dark OrangePart 3039Element 6248859 or 6115261×2
Lime
4 pieces
Animal, Turtle with Reddish Brown Spots PrintLimePart 11603pr0001Element 6028753×1
Brick 1 x 2 with Vet Paw Print Logo and Hedgehog with Food Bowl PrintLimePart 3004pr0017Element 6151998×1
Plate 6 x 6LimePart 3958Element 4525858×1
Plate Round Half 4 x 8LimePart 22888Element 6133225×1
Magenta
4 pieces
Headwear Accessory Bow with Heart, Long Ribbon and PinMagentaPart 11618Element 6023827×1
Panel 1 x 2 x 1 with Rounded Corners and 2 SidesMagentaPart 23969Element 6248482 or 6131870×2
Plant, Flower, Plate Round 1 x 1 with 4 PetalsMagentaPart 33291Element 6170306 or 6078932×1
Dark Pink
3 pieces
Brick Arch 1 x 4Dark PinkPart 3659Element 4244613×2
Plant, Flower, Plate Round 1 x 1 with 4 PetalsDark PinkPart 33291Element 6170298 or 4216479×1
Brick 1 x 2 x 2 with Cat Food Box PrintOrangePart 3245cpr0005Element 6151990×1
Plant, CarrotOrangePart 33172Element 6424015 or 6103249×1
Trans-Dark Blue
2 pieces
Tile 1 x 4 with GrooveTrans-Dark BluePart 2431Element 6510179 or 6252050×2
Trans-Red
2 pieces
Tile 1 x 2 with GrooveTrans-RedPart 3069bElement 6514220 or 6251290×2
Flat Silver
1 piece
Tile Special 1 x 2 Grille with Bottom GrooveFlat SilverPart 2412bElement 4619636×1
Glitter Trans-Purple
1 piece
Cone 1 x 1 [Top Groove]Glitter Trans-PurplePart 59900Element 6514025 or 6337632×1
Lavender
1 piece
Headwear Accessory Bow with Heart, Long Ribbon and PinLavenderPart 11618Element 6023826×1
Medium Nougat
1 piece
Plate Special 16 x 17 x 2/3 with 1 x 4 Recessed with Checkerboard Tiles, Paws and Rugs PrintMedium NougatPart 15623pr0004Element 6146909×1
Yellow
1 piece
Brick Special 1 x 2 with GrilleYellowPart 2877Element 287724×1
Minifigures
2 figures
Mia - Medium Azure Shirt, Magenta Skirt, Veterinarian, Nurse HatMinifigure, checked as a whole figure×1
Olivia - Dark Pink Top, Medium Lavender SkirtMinifigure, checked as a whole figure×1
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
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Keep a record
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pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.