ITEM NAME:Dual Swiveling Grip Head Angle Clamp for Photo Studio Boom Arm Reflector Ho E6M6 Dual Swiveling Grip Head Angle Clamp for Photo Studio Boom Arm Reflector Ho E6M6 Connect a boom arm to a light stand. The clamp is adjustable to fit many boom diameters. Enable to adjust the height, angle, and other positioning. Easy to setup, use and adjust. A great addition to multiple uses in your studio. The dual swiveling grip head clamp adds versatility to many light stands. It accepts an umbrella, stub, boom arm, flag, or gobo while mounted to stand. Specifications: Material: ABS Color: Black Item Size(without hand grip): 7.7 * 8.2cm / 3 * 3.2in (Diameter * Height) Note:The light stand and boom arm are not inxluded! Package List:1 x Dual Swiveling Grip Head Clamp Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.