1.FOUR SQUARE CLAMP

WITH FOUR AIS TORQUE INDEPENDENT CONTROL,MAXIMUM CLAMING WHEELBASE 100MM IN BOTH DIRECTIONS

2.U SHAPPED CLIP

CLOSELY FIT ALL KINDS OF SHAPED MOTHERBOARDS WITH SOLID AND DURABLE CLAMPING

3.SPECIAL SCREW ROD

5 TIMES FASTER SLIDING SPEEDS WITH 10 THREAD DRIVERS ON THE SCREWS