1、Adopts qualified metal materials, solid, anti-rust, heavy duty, lightweight and durable. 2、The articulating knob makes the locking system more tight and secure, provides excellent stable support for the camera during shooting​. 3、With 1/4'' screw, covered with rubber pad, compatible with most cameras and can protect cameras from scratch. 4、The ball head support 360 degree rotation, can be freely adjusted to meet your needs. 5、Great accessory for camera and offers extra space for mounting various accessories such as monitor, fill light, etc. Features: Adopts qualified metal materials, solid, anti-rust, heavy duty, lightweight and durable.  The articulating knob makes the locking system more tight and secure, provides excellent stable support for the camera during shooting. With 1/4'' screw, covered with rubber pad, compatible with most cameras and can protect cameras from scratch. The ball head support 360 degree rotation, can be freely adjusted to meet your needs. Great accessory for camera and offers extra space for mounting various accessories such as monitor, fill light, etc. Specifications: Material: Alloy  Color: Black Screw: 1/4" Size: Approx. 9* 2.2cm / 4.64 x 1.65inch Weight: Approx. 75g Packing List: 1 x Magic Arm Other items in the picture are not included.