LEGO Sets with Part 73090b Brick 2 x 6 x 2 Weight with Plate Bottom, Boat - sealed dimple on short sides
LEGO PART 73090b Brick Special 2 x 6 x 2 Weight with Sealed Bottom and Dimples on Ends | Rebrickable - Build with LEGO
LEGO on Twitter: "@jnthnjffris This is a weight brick. Used as counterweight in the 8868 Air Tech Claw Rig/Materials Handler 😎" / Twitter
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Measurement
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LEGO Blue Brick 2 x 6 x 2 Weight with Split Bottom (73090) | Brick Owl - LEGO Marketplace
BrickLink - Part 73090apb01 : LEGO Brick, Modified 2 x 6 x 2 Weight - Bottom Openings, Center Seam on Ends with White 'G. 45t W. 2,8t K. 1t' Pattern (Sticker) -
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