Andoer Magic Friction Arm Super Crab Clamp Articulating Pliers Clip Large-size 5.5cm Bite Coming with screws of 1/4 and 3/8. ? Help lighting engineers or photographers fix their accessories more easily. Large grip size is up to 5.5cm. ? Be able to fix onto any tubes coming with size from 2-5.5cm. Be able to fix onto any shaped body, such as water pipes, handrails, doors, shelves, tables, branches, wires, etc.