Amazon.com: Gobricks GDS-577 Technical, Axle 5 Compatible with Lego 32073 All Major Brick Brands Toys MOC Parts and Pieces Building Blocks Technical Parts Assembles DIY (194 Light Bluish Gray(071),600 PCS) : Toys & Games
LEGO 32073 Technic Axles Length 5 Light Grey (Pack of 20) : Amazon.co.uk: Toys & Games
LEGO Black Axle 5 (32073) Comes In | Brick Owl - LEGO Marketplace