The Workshop Sheet 10 of 22

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Medium Set of Soft Bricks

Checking

9021 Medium Set of Soft Bricks

52 pieces in 12 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

Red 18 pieces

  • Brick Soft 2 x 2 Red Part 29540 Element 4238349 or 4121548 ×4
  • Brick Soft 2 x 4 Red Part 29541 Element 4238352 ×7
  • Brick Soft Curved 2 x 2 Red Part 71727 Element 4238372 ×4
  • Brick Soft Curved 2 x 4 Red Part 50855 Element 4238375 ×3

Yellow 16 pieces

  • Brick Soft 2 x 2 Yellow Part 29540 Element 4238363 ×4
  • Brick Soft 2 x 2 with Eye Print Yellow Part 29540pr0001 Element 4121550 ×4
  • Brick Soft 2 x 4 Yellow Part 29541 Element 4238365 ×6
  • Brick Soft 2 x 4 with Smile Print Yellow Part 29541pr0001 ×2

Blue 9 pieces

  • Brick Soft 2 x 2 Blue Part 29540 Element 4238357 or 4121808 ×4
  • Brick Soft 2 x 4 Blue Part 29541 Element 4238359 ×5

Green 9 pieces

  • Brick Soft 2 x 2 Green Part 29540 Element 4238366 or 4121807 ×4
  • Brick Soft 2 x 4 Green Part 29541 Element 4238367 or 4121804 ×5

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.