This multi use accessory allows you to obtain the perfect angle for any action video camera while on a mount as well as converting any GoPro mount into a ¼”-20 screw thread.- Optional Top 1⁄4"-20 Mount for other Action Cameras: use top part when using Contour®, Sony®, Garmin®, or any other action camera. Provides additional pivoting to achieve the desired camera angle.- Long GoPro Thumbscrew: combines top and base part. Also used to mount a GoPro camera on the base Tripod Mount.- Base 1⁄4”-20 Tripod Mount for GoPro: independent, twisting bottom design makes it easy to screw into any female 1⁄4"-20 accessory.