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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.
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 (10969) and each piece's element ID, both listed above.
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Duplo Animal Cat / Kitten Sitting with Gray Nose and Chest Print
×1
Duplo Brick 1 x 2 x 2 with Cat Eating Fish Print
×1
Duplo Car Base 4 x 8 with Four Black Wheels and Vibrant Yellow Hubs
×1
Duplo Container Box 2 x 4 x 2 Door with Handle
×1
Duplo Plate 2 x 4
×1
Duplo Trailer Flatbed 4 x 8 with Hook and 4 Vibrant Yellow Wheels
×1
Duplo Container Box 2 x 4 x 2 with Open Sides
×1
Duplo Figure with Helmet White, Black Legs, Safety Jacket with Reflective Stripes, Green Eyes, Stubble Print (Firefighter)
×1
Duplo Truck Body, with Fire Logo, Headlights, Grille, and Red and White Fender Print
×1
Duplo Turntable 4 x 4 Base, Flush Surface
×1
Duplo Brick 2 x 4 Curved Bottom
×1
Duplo Brick 2 x 4 Curved Top
×1
Duplo Plate Round 4 x 4
×1
Duplo Train Crossing Gate Base / Crane Base with Bottom Hole
×2
Duplo Ladder with Base Locking Ring (Fire)
×1
Duplo Winch Drum Narrow with Black String and Light Bluish Gray Nozzle
×1
Duplo Brick 2 x 2
×1
Duplo Brick Round 2 x 2 x 2
×1
Duplo Siren with Light & Sound, 1 x 2 White Base with Red Button
×1
Duplo Crane Basket with Locking Ring
×1
Tick each piece as you find it, or mark it missing.
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.
Request a replacement from LEGOMark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.
