- It is normal for the cross axle to fall off when it plug into the metal universal joint,as it is a connector, not a fixer. It will hold your axle well after you assemble your model.
- Product Size:ID-6mm to 6mm. OD-11mm. Height-24mm.
- Work with standard building blocks, flexible for the connection.
- You will get 10pcs Aluminum Universal joint.
- Upgraded version,aluminum alloy material,strong and sturdy. If you need plastic verstion,please see this: B0BTYDRX66