BlockTalk Find Your Set

Free tool

LEGO Missing Piece Checker

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.

Space Lock-Up Isolation Base

Checking

6955 Space Lock-Up Isolation Base

234 pieces in 91 part and color combinations, plus 3 minifigures.

The piece count includes the 18 parts inside the set's minifigures, which this inventory lists separately. 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.

Show

Piece checklist

Plates 67 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×3
  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×4
  • Plate 1 x 8 Black Part 3460 Element 346026 ×4
  • Plate 2 x 10 Black Part 3832 Element 383226 ×2
  • Plate 2 x 12 Black Part 2445 Element 244526 ×5
  • Plate 2 x 2 Black Part 3022 Element 302226 ×4
  • Plate 2 x 3 Black Part 3021 Element 302126 ×3
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 2 x 8 Black Part 3034 Element 303426 ×4
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 6 x 16 Black Part 3027 Element 302726 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×6
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×4
  • Plate 2 x 12 Blue Part 2445 Element 244523 ×1
  • Plate 2 x 16 Blue Part 4282 Element 6481432 or 4595188 ×3
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×5
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×2
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×1

Tiles 27 pieces

  • Tile 1 x 2 with Arrow Long Red with Silver Border Print Black Part 3069bpr0024 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×3
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×3
  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×2
  • Tile 1 x 2 with Space Computer Print Blue Part 3069bpr0039 ×2
  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×2
  • Tile 1 x 8 with Groove Blue Part 4162 Element 416223 ×12
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 ×2

Bars, Ladders and Fences 22 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×5
  • Bar 1 x 6 [Open Studs] Black Part 4873 ×3
  • Fence Lattice 1 x 4 x 2 Black Part 3185 Element 4188953 or 4106485 ×4
  • Antenna 1 x 4 with Rounded Top Trans-Red Part 3957a Element 6065498 or 4106520 ×10

Plates Special 19 pieces

  • Bracket 2 x 2 - 2 x 2 Black Part 3956 Element 6254808 or 6019217 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thin U Clip] Black Part 4085b ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×3
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Black Part 4623 Element 4597267 or 462326 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×3
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Blue Part 3794a ×4
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Blue Part 2444 Element 4529003 or 244423 ×2

Bricks 13 pieces

  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Black Part 2453a Element 245326 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 1 x 3 Black Part 3622 Element 362226 ×1
  • Brick 1 x 8 Black Part 3008 Element 300826 ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×3
  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2

Hinges, Arms and Turntables 12 pieces

  • Hinge Bar with 3 Fingers and End Stud (Control Lever) Black Part 2433 Element 4497182 or 243326 ×2
  • Hinge Plate 1 x 2 with 2 Fingers and Hollow Studs Black Part 4276b Element 4264363 or 4256402 ×2
  • Hinge Plate 2 x 4 - Female (Digger Bucket Holder) Black Part 3597 Element 4187208 or 359726 ×2
  • Hinge Plate 2 x 4 - Male (Digger Bucket Holder) Black Part 3315 Element 4187207 or 331526 ×2
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Black Part 4531 Element 453126 ×1
  • Hinge Plate 1 x 2 with 3 Fingers [Hollow Studs] Blue Part 4275b Element 4239024 or 427523 ×1
  • Hinge Tile 1 x 4 Blue Part 4625 Element 462523 ×1
  • Slope 45° 4 x 4 Double with Hinge Blue Part 4857 Element 485723 ×1

Bricks Sloped 11 pieces

  • Brick Sloped 33° 3 x 2 with 'POLICE' Print (Space Police I) Black Part 3298pr0013 ×1
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×2
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×4
  • Brick Sloped 45° 2 x 2 with Computer Panel Print Blue Part 3039pr9994 ×1
  • Brick Sloped Inverted 45° 4 x 4 Double with 4 x 2 Recessed Blue Part 4854 Element 4296467 or 4140621 ×1

Tiles Special 11 pieces

  • Tile Special 1 x 2 Grille without Bottom Groove Black Part 2412a ×6
  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×5

Panels 9 pieces

  • Panel 1 x 2 x 3 with Space Police I Left Print Black Part 2362apr0001 ×1
  • Panel 1 x 2 x 3 with Space Police I Right Print Black Part 2362apr0002 ×1
  • Panel 3 x 2 x 6 Black Part 2466 ×3
  • Panel 3 x 2 x 6 Trans-Red Part 2466 ×4

Plates Round Curved and Dishes 9 pieces

  • Dish 6 x 6 Inverted, Radar / Webbed [No Anti-studs] Black Part 4285a ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×4
  • Dish 2 x 2 Inverted [Radar] Blue Part 4740 Element 4570283 or 4239188 ×1
  • Dish 2 x 2 Inverted [Radar] Trans-Red Part 4740 Element 6580377 or 6245303 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2

Supports, Girders and Cranes 8 pieces

  • Support 2 x 4 x 5 Stanchion Inclined [5mm wide posts] Black Part 4476b Element 6110030 or 4142131 ×8

Bricks Round and Cones 7 pieces

  • Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×2
  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×5

Plates Wedged 7 pieces

  • Wedge Plate 3 x 3 Cut Corner Blue Part 2450 Element 6536558 or 4609330 ×2
  • Wedge Plate 3 x 6 Cut Corners Blue Part 2419 Element 241923 ×5

Bricks Special 4 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 2 with Pin Black Part 2458 Element 6116990 or 245826 ×2

Minifig Accessories 2 pieces

  • Equipment Radio [Compact Handle] Black Part 3962a ×1
  • Equipment Signal Paddle Black Part 3900 Element 6575081 or 4255667 ×1

Windows and Doors 2 pieces

  • Window 1 x 4 x 3 Train with All Studs Hollow Blue Part 4033 Element 4141273 ×1
  • Glass for Window 1 x 4 x 3 Trans-Red Part 3855 ×1

Baseplates 1 piece

  • Baseplate 16 x 32 Light Gray Part 3857 Element 4219612 or 274802 ×1

Technic Gears 1 piece

  • Technic Rack 1 x 20 x 2/3 Black Part 2428 ×1

Technic Special 1 piece

  • Technic Rack Winder [Complete Assembly] Black Part 2426c01 ×1

Wheels and Tyres 1 piece

  • Wheel Balloon with Axle hole Black Part 4288 Element 4113076 or 428876 ×1

Minifigures 3 figures

  • Space Police I Minifigure, checked as a whole figure ×2
  • Blacktron I (3626a Head) Minifigure, 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.

Request a replacement from LEGO

Buy the piece

Mark 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.

Keep a record

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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy