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.

Olivia's Laboratory

Checking

561609 Olivia's Laboratory

19 pieces in 15 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

Plates 5 pieces

  • Plate 2 x 4 Medium Lavender Part 3020 Element 4619516 ×1
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×3
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1

Panels 3 pieces

  • Panel 1 x 2 x 1 [Rounded Corners] Medium Azure Part 4865b Element 6146228 ×1
  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Tan Part 87552 Element 6063943 ×2

Plants & Trees 3 pieces

  • Plant, Carrot Top Bright Green Part 33183 Element 4119479 ×1
  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Green Part 33291 Element 6170300 or 4619599 ×2

Bricks 2 pieces

  • Brick 1 x 2 Medium Lavender Part 3004 Element 6015060 or 4623598 ×1
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×1

Minifig Accessories 2 pieces

  • Equipment Binoculars Dark Bluish Gray Part 30162 Element 4587887 or 4211051 ×1
  • Equipment Bottle / Erlenmeyer Flask with Trans-Bright Green Fluid Pattern Trans-Clear Part 93549pat0001 Element 6530023 or 6447576 ×1

Bricks Curved 1 piece

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Light Bluish Gray Part 6091 Element 6285778 or 4211519 ×1

Bricks Special 1 piece

  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×1

Tiles 1 piece

  • Tile 1 x 2 with Groove Medium Azure Part 3069b Element 6603315 or 4649741 ×1

Tiles Round and Curved 1 piece

  • Tile Round 1 x 1 Trans-Light Blue Part 98138 Element 6514192 or 6274739 ×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.