1. It can lock the vehicles steadily with the special design of three hooking arms.

2. Simple structure, operate easily, durability, popularity

3. It with light weight and dimension, easily and convenience for taking along.

4. The three hooking arms can be moveable freely, which enable it can fits all kinds of tires.

5. With the soft rubber cover on the handle, it can make comfortable for users to hold it, and avoid the hurt of the users hands.