Features: 1/4" Female screw hole mobile phone & tablet stand for live streaming & photography tripod mounting accessory. U-shaped metal clamp photography stand for mobilephoness live streaming support photography tripod mounting tube 1/4" female screw hole High strangth Iron construction, clamps round tubes 1-36mm in diameter, secures to surfaces up to 25mm thick. Primarily used for art easels, gym equipment, connecting 1/4" male screw phone mounts, tablet stands. 1/4" female screw hole clamp mounts primarily connects to tripods, photography stands, camping lights, phone clamps, live streaming phone microphone stand Specifications: Component: Iron Size: 55x45x25mm/2.16x1.77x0.98in Round tubes can be clamped with 1-36mm diameter Round tubes Can be clamped with 25mm thick wooden boards Features U8 1/4 female screw hole bottom photography bracket accessories Package Includes: 1PC 1/4 female screw hole fixing base note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.