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LEGO Black Technic Brick 2 x 2 with Hole and Two Rotation Joint Sockets (48172 / 48461) | Brick Owl - LEGO Marketplace
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LEGO part 47452 - Dark Bluish Gray Technic, Brick Modified 2 x 2 with Pin Hole, Rotation Joint Ball Half (Horizontal Top), Rotation Joint Socket at BrickScout
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LEGO PART 48172 Technic Brick Special 2 x 2 with Pin Hole, with 2 Rotation Joint Sockets | Rebrickable - Build with LEGO
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LEGO Black Technic Brick 2 x 2 with Hole and Two Rotation Joint Sockets (48172 / 48461) | Brick Owl - LEGO Marketplace
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