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.

Mermaid Vibes

Checking

41909 Mermaid Vibes

34 pieces in 9 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

Lavender 8 pieces

  • Tile Round 1 x 1 Lavender Part 98138 Element 6322820 ×4
  • Tile Round 1 x 1 Quarter Lavender Part 25269 Element 6240465 ×4

Metallic Silver 8 pieces

  • Tile Round 1 x 1 Quarter Metallic Silver Part 25269 Element 6546124 or 6294879 ×8

Light Aqua 5 pieces

  • DOTS Bracelet 1 Stud Wide Light Aqua Part 67196 Element 6308510 ×1
  • Tile Round 1 x 1 Quarter with Scales Print Light Aqua Part 25269pr0022 Element 6308521 ×4

Dark Turquoise 4 pieces

  • Tile Round 1 x 1 Quarter Dark Turquoise Part 25269 Element 6240467 ×4

Opal Trans-Light Blue 4 pieces

  • Tile Round 1 x 1 Opal Trans-Light Blue Part 98138 Element 6514199 or 6299900 ×4

Trans-Light Blue 4 pieces

  • Tile Round 1 x 1 Half Circle with Purple and Lavender Clam Shell Print Trans-Light Blue Part 24246pr0005 Element 6308522 ×4

Dark Purple 1 piece

  • DOTS Bracelet 1 Stud Wide Dark Purple Part 67196 Element 6308503 ×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.