1、Made of high quality aluminium alloy material, with surface hard anodizing treatment, sturdy and durable. 2、Light weight and good workmanship, it will not add any burden to ball head. 3、Easy to install and use, it can be firmly fixed by the screw, which does not affect normal functions of camera. 4、Allowing you to rotate 360 degrees as you like, the camera is still stable during taking photos, showing perfect shooting results. 5、Used to make gimbal able to work with action camera. Features: Made of high quality aluminium alloy material, with surface hard anodizing treatment, sturdy and durable. Light weight and good workmanship, it will not add any burden to ball head. Easy to install and use, it can be firmly fixed by the screw, which does not affect normal functions of camera. Allowing you to rotate 360 degrees as you like, the camera is still stable during taking photos, showing perfect shooting results. Used to make gimbal able to work with action camera. Specification: Material: Aluminium Alloy Color: as pictures shown Size: 14.2* 6.2* 6.05* 4.5* 2.4cm/ 5.6* 2.4* 2.4* 1.8* 0.9in   Package List: 1 x Adapter 1 x U Fixed Base 2 x Screws