Features:
1) Zinc alloy material with light paint covered to avoid rusting
2) Installed on 25mm diameter shopping cart push handle with special allen wrench
3) With 25cm long stainless steel chain to make trolley connected
4) Uses 23-25mm diameter coin to insert in to release shopping carts for usage
5) At least 20,000 times of use guaranteed
6) Supermarket management improved and keep shopping carts organized

Inner packing:
1pc/polybag with installation parts

Outer packing:
40pcs/ctn