1. Made of PC plastic, it is strong, anti-aging, light and convenient 2. Quick release buckle for quick disassembly and assembly, just push the button to take it out, convenient and fast 3. With corresponding accessories, it can be adjusted 360 degrees 4. Standard base, suitable for most helmets 5. Three-card one-roll fast-release helmet mount, can bear 300g, with adjustment handle, three-card locking adjustment is convenient and fast, suitable for sports cameras with two card leaves and sports camera accessories, suitable for helmets and dried cuttlefish, suitable for 17mm ball head adapter Specifications: screw type 360 degree adjustable helmet mount Color:Black Material:PC Plastic Package Contents: 1 x Base 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.