Amazon.com: Gobricks GDS-668 Technical, Liftarm Thick 1x15 Compatible with Lego 32278 64871 All Major Brick Brands Toys Building Blocks Technical Parts Assembles DIY (1 White(090),7 PCS) : Toys & Games
LEGO Dark Stone Gray Beam 15 (32278 / 64871) | Brick Owl - LEGO Marketplace
LEGO Compatible Parts - Technic Beam 1 x 15 Thick #32278