Features: Made by Aluminum alloy, , , and anti-, can rotate 360-degrees and can rotate about 80 degrees in the horizontal direction, have more freedom to adjust the flash direction. multi-position free connection and fixation, have more freedom to adjust the flash direction. Multiple expansion screw holes 1/4inch 3/8inch , meet the installation requirements of customers. Usage: The ball clamp is used to attach 2 arms, base adapters, and strobes together, the clamp mount for 1-inch ball arms for 9 8 7 6 5 4 3+ 3 4k action camera accessory, and others. Ergonomic Design: Ergonomic handles design, naturally suitable for fingers and made of resin to enhance its operability, with lower power consumption, easy to lose, adjust the relative angle of the joint arms firmly clamp the ball joints. Have a higher degree of freedom to adjust the flash direction. A wide range of strong practicality is photography enthusiasts a great choice. Size: 42 x 70 x 24.5mm Weight: about 120g Compatible Action Camera : for 4k, , , , , , , , , , Camera Colour:black Material:Aluminum alloy Package Contents: 2 x diving clamp mount Only the above package content, other products are not included. Note: Light reflection 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. Function: Perfectly connected with the ball to plug in the fill light, diving flashlight arm or action camera, etc. when normal and underwater photography. Made of Aluminum Alloy material: aluminum alloy (hard anodized body) meets the highly accurate and requirements. Anti-Drop Design: There is a rotation stop screw at the handle to limit the degree of the knob. The product can only be rotated until the ball can be adjusted, and the angle can not be screwed out, so as to prevent the ball from falling. Sleeve slide Rail design prevents ball jamming: Most of the old version of butterfly clips rely on screws as guide rails, which easily leads to locking only one ball . This new version uses the aluminum alloy guidepost as a guide rail to avoid locking only one ball and sticking the ball . Expand to use more devices: Multiple expansion screw holes 1/4inch 3/8inch , meet the installation requirements of customers. Not only for Diving ball clamping but also for monitor and adapters.