Features 1、Heavy duty arm stand with built-in spring balance system, making the stand more upscale and professional than those have the spring exposed outside. 2、Stable clamp with screw, easy and convenient for installation and removal, can be easily mounted to a desk within 5.8cm. 3、Rotatable design, very flexible to adjust, satisfying your various needs during work. Specifications: Features： Heavy duty arm stand with built-in spring balance system, making the stand more upscale and professional than those have the spring exposed outside. Stable clamp with screw, easy and convenient for installation and removal, can be easily mounted to a desk within 5.8cm. Rotatable design, very flexible to adjust, satisfying your various needs during work. Made from premium steel, sturdy and durable, max. load bearing up to 2kg. Comes with a 3/8 inch to 5/8 inch adapter screw, compatible with many microphones. Specifications： Color: Black Material: Steel Product Size: 52 * 52 * 6cm/ 20.4 * 20.4 * 2.3inch Product Weight: 1.091kg/ 2.4lbs Package Size: 59 * 20 * 5cm/ 23.2 * 7.8 * 1.9inch Package Weight: 1.355kg/ 2.9lbs Package List： 1 * Arm Stand 1 * Clamp 1 * Adapter Screw 4 * Stick Tape Package List 1 * Arm Stand 1 * Clamp 1 * Adapter Screw 4 * Stick Tape