Slope Inverted 45° 4 x 2 Double with Pins and Axle Hole Type 2 [X Opening]

30390b

Bricks Special

Appears in 20 official sets

Catalog rarity

Moderate

Used in 20 official sets — reasonably findable but not universal. Available in 8 catalog colors.

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.

Slope Inverted 45° 4 x 2 Double with Pins and Axle Hole Type 2 [X Opening] (part 30390b) is a Bricks Special used in 20 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.

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Market value

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