This clamp consists of a locking pair of pliers witha 6" length of chain that can be wrapped around odd shaped objects such as a tree branch. This clamp features two baby 5/8" (16mm) stud s one mounted on the back of the clamp and another at a right angle at the end of the handle that is used to adjust the tension when locked down. The stud s have a knurled texture to prevent fixtures from rotating when locked in place. The release lever has a set-screw witha knob to prevent accidental opening of the clamp when locked in place.