3" QUICK FIST clamp - Item #50050

Holds objects from 2 3/4" to 3 1/4" (70mm to 83mm) in diameter, Each clamp supports a safe working load of 50lbs (23 Kilos), Mounts easily with one 1/4" (6mm) bolt or screw, Mounting area: 4 1/2 x 1 1/4 (114mm x 32mm).