1. Easy to install, knob design, free to adjust. 2. Wide diameter range, suitable for 22-25.5mm and 30-32mm handlebars. 3. Made of aviation-grade aluminum alloy, CNC precision machined, lightweight, and durable. 4. unique thumb-wheel locking system. makes it quick and easy to attach your device without having to rotate the camera or accessory. 5. Compatible with action cameras (for Insta360 X3 X2 ONE R, for GoPro Hero 11/Max, for DJI Osmo Action, etc.) and accessories with 1/4-inch threaded holes. Size: 5x5x139cm Net Weight: 38.5g Interface: 1/4 Screw Color:A:Black/B:Black & Red Material: Aluminum Alloy<br><br>Package Contents: 2 * Mount set 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.