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.

Buildable Ruler (Red)

Checking

52395 Buildable Ruler (Red)

28 pieces in 17 part and color combinations.

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

White 16 pieces

  • Plate 2 x 12 White Part 2445 Element 6552091 or 244501 ×2
  • Tile 1 x 4 with Ruler CM 13 - 15 Pattern White Part 2431pr0425 ×1
  • Tile 1 x 4 with Ruler INCH 5 - 6 Pattern White Part 2431pr0424 ×1
  • Tile 1 x 8 with Ruler CM 0 - 5 Pattern White Part 4162pr0147 ×1
  • Tile 1 x 8 with Ruler CM 13 - 18 Pattern White Part 4162pr0149 ×1
  • Tile 1 x 8 with Ruler CM 19 - 24 Pattern White Part 4162pr0150 ×1
  • Tile 1 x 8 with Ruler CM 25 - 30 Pattern White Part 4162pr0151 ×1
  • Tile 1 x 8 with Ruler CM 6 - 12 Pattern White Part 4162pr0148 ×1
  • Tile 1 x 8 with Ruler INCH '5', '6', '7' Print White Part 4162pr0144 ×1
  • Tile 1 x 8 with Ruler INCH 0 - 2 Pattern White Part 4162pr0142 ×1
  • Tile 1 x 8 with Ruler INCH 10 - 12 Pattern White Part 4162pr0146 ×1
  • Tile 1 x 8 with Ruler INCH 3 - 4 Pattern White Part 4162pr0143 ×1
  • Tile 1 x 8 with Ruler INCH 8 - 9 Pattern White Part 4162pr0145 ×1
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×2

Red 9 pieces

  • Plate 2 x 4 Red Part 3020 Element 302021 ×9

Blue 2 pieces

  • Baseplate 4 x 20 Blue Part upn0006 ×2

Light Bluish Gray 1 piece

  • Plate 2 x 16 Light Bluish Gray Part 4282 Element 4211486 ×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.