What's in the box:

Camera Magic Friction Arm Small Super Clamp Crab Pliers Clip (Standard)

Features:
Coming with screws of 1/4 and 3/8.
Help lighting engineers or photographers fix their accessories more easily.
Grip size is up to 4.9cm.
Be able to fix onto any tubes coming with size from 1.2-4.9cm.
Be able to fix onto any shaped body, such as water pipes, handrails, doors, shelves, tables, branches, wires, etc.

Usage: Can clamp types of tubes, and coming with 1/4, 3/8 Screws; can match Magic Arms, LED and other lighting, video accessories.

Specifications:
Material: Aluminium alloy & plastic
Max. grip size: Up to 4.9cm / 1.9in
Item weight: 91g / 3.23oz
Package size: 7.5 * 8.0 * 2.3cm / 3.0 * 3.2 * 0.9in
Package weight: 103g / 3.64oz

Package list:
1 * Clamp