Features: Easy to install and durable in use; With reasonable design, it works well and reduces unnecessary energy loss; Rubber tyres with clear concave and convex surfaces ensure the better grip and operation; It has effective cushion effect for the body vibration caused by rough roads; Available for TRX4M Stock Axle only. Specifications: Material: Aluminum Alloy & rubber Color: Black/Red/Silver Size: As shown Package included: 1Set Snow wheels Note: This is only suitable for TRX4M original axles and not suitable to other Copy axles