Features: Photography bracket accessories, multifunctional expansion clamp adapter, long arm link clip. Adjustable caliber size, stable connection, not easy to fall, wide applicability. Circular mouth designing, closely fitting with the horizontal bar, stable and easy to use. 2-hole tube clamp, capable of 360 degree rotation, allowing you to adjust from multiple angle and enhances flexibility. 1-hole pipe clamp is suitable for pipe diameters of 12-22mm, with 1/4 screw installation, and can connection to mobile phones clamps, gimbals, and movie lights to expand more functions. Specifications: Material: ABS Color: black, yellow(optional) Type: 2-hole, 1-hole(optional) 2-Hole Size: approx. 7.7-10.50cm/3.03-4.13inch, Φ3.50cm/1.38inch 1-Hole Size: approx. 5.6-7cm/2.2-2.76inch, Φ3.50cm/1.38inch (more detail size please refer to pictures) Package Includes: 1Pc Long Arm Light Stand Adapter Clamp note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.