Kupo Chain Clamp with Duel Baby 5/8” Pins is a versatile lighting rig that allows you to mount on any size pipe up to 10” in daimeter. Due to the flexibility of the chian, it can be wrapped around odd shaped objects such as a tree branch. This clamp features two baby 5/8” (16mm) pins, 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 studs have a knurled texture to prevent fixtures from rotating when locked in place. The release lever has a set-screw with a knob to prevent accidental opening of the clamp when locked in place.