Function Brick Round 4 x 4 x 2/3 with 4 Studs (Generic for Gadgets)

18868c00

Electronics

Appears in 43 official sets

Catalog rarity

Moderate

Used in 43 official sets — reasonably findable but not universal.

Based on official set inventories in our catalog — not market price or production volume.

Best sets to source this part

Smallest official sets that include this element — useful when you only need one piece, not the whole theme.

Function Brick Round 4 x 4 x 2/3 with 4 Studs (Generic for Gadgets) (part 18868c00) is a Electronics used in 43 official LEGO sets. Scan or search to authenticate loose parts and check market value. Open the parent-set list to see which themes and years used this mold — essential when a common shape appears in a rare color or print.

→ Category: Electronics
→ Appears in 43 official sets
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Market value

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