【LIFE-TIME Warranty】 30-Day money back guarantee, LIFE-TIME Warranty and friendly 7 x 24 hours customer service.【Wide Compatibility】Compatible with Hero 12,Hero 11,Hero 10,Hero 9,Hero 8,Hero 7,Hero 6,Hero 5,Hero 4,Go Pro Max,Go Pro Hero 11 Mini,Session,DJI OSMO Action,Action 2,Action 3,Action 4,Insta360X1,X2,X3,Others Action camera.【Curved Design】The arc -shaped structure is more perfectly fitting the helmet to strengthen the stability. The arm is durable, no matter how you twist, it will not deform.【Strong Adhesive Pad】Strong waterproof sticky pads help to fix the camera on the helmet firmly. Plat and curved mount stickers offered to make it possible for different surface mounting.【Adjustable Length】It adopts a design with adjustable length, and the installation method is simple. It only requires a gentle break and a buckle to complete disassembly and assembly connection.