Breakthrough Features:

1. One Hand Instant Adjustment for both Grip and Release;
2. Absolute Anti-Slip Mechanism Provides No Damage on Workpiece;
3. The Harder Force Given on Handle,The Tighter the Grip is Resulted on Workpiece;
4. Very Simple Structure for Easier Manufacturing than Any Existing Quick Adjustable Wrench.

Please visit http://www.youtube.com/watch?v=S0jyz83hXI8 for its demonstration.