The product includes :
CVD-2pcs
Screw Pin M4x2.5x12-2pcs
4x2.5 Silicone O-Ring-2pcs
Product major function & usage:
Transferring the power and leading the drive associated with wheels
1. Made with a harden steel 45# coupled with aluminum 6061 T6 human anatomy that is sturdy and lightweight.
2. CVD design for smooth rotation.
3. Retractable design provides more room as well as the rocker swings better.