The item for sale is an 11" Magic Arm + Crab Clamp. The set consists of:

• Crab Clamp: A professional studio clamp that allows for secure and stable attachment of accessories to profiles and pipes with a diameter of 11 to 45 mm. The clamp features a built-in 3/8" and 1/4" thread.
• Articulating Arm Magic Arm 11": The articulating arm allows you to mount various types of photography/video accessories, such as flashes and LED lights, microphones, and LCD display screens. It is 29 cm (11") in length and can be positioned in any orientation in a spherical system.

The articulating arm offers simple and reliable position adjustment with the ability to adjust in four points, allowing for unlimited position combinations. The arm locks into any position using a knob.