Aluminum Alloy Tripod Head Helmet Fixed Adapter Mount for GoPro Hero11 Black / HERO10 Black /9 Black /8 Black /7 /6 /5 /5 Session /4 Session /4 /3+ /3 /2 /1, DJI Osmo Action and Other Action Cameras(Red)

1. Dimensions: 20 x 39 mm
2. Material: Aluminum alloy
3. Processing technology: CNC processing
4. Used to fix the camera to the helmet for skydiving, you need to drill your own
5. It is made of aluminum alloy, light weight, easy to carry, anodized, and does not fade.