Compact size mini ball , can be widely applied in camera tripod/monopod mounting. 360degree swivel ball enable smooth adjusting for panoramic , dual U-shape slot makes level and vertical accessible. Premium aluminum alloy structure provides tough and sturdy support for heavy duty camera loading, for long term use. Scaled plate base can let you accurately adjust the rotating angle, the plate can be locked by the side knob easily. Universal 1/4 screw and bottom thread brings ultra-wide mounting compatibility for cameras and tripods. Colour:black Material:Aluminum alloy Size:5.5x5x4CM Package Contents: 1 x Ball Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.