Features 1、APPLICABLE MODELS: This helmet extension arm is suitable for a wide range of action cameras, including for insta 360 X3 ONE RS GO 2 ONE X2 ONE R ONE X. 2、PRACTICAL ACCESSORY: This camera helmet extension arm has an extended length of 100mm, which can help you get a wider field of view for shooting. In addition, you can record your cycling sports images from the first viewpoint, which is very practical. 3、STANDARD FIXING BUCKLE: Equipped with universal aluminum alloy bayonet, it is compatible with action cameras with double leaf and triple leaf bayonets as well as accessories, ensuring wide applicability and compatibility. 4、STURDY AND DURABLE: Made of aviation grade aluminum alloy and CNC one piece molding process, it is lightweight but sturdy and durable. Attach it to your helmet and hardly feel the weight, suitable for long time shooting, ensuring stability and reliability. 5、EXPANDED DEVICES: Comes with 1/4 inch threaded holes, convenient for you to expand the fill light and other devices to meet the fill light needs you need when riding at night. Specification Item Type: Helmet Extension Arm Material: Aluminum Alloy Applicable Models: for Insta 360 X3 ONE RS GO 2 ONE X2 ONE R ONE X and Other Sports Cameras Length: Approx. 100mm/3.9in Expansion Hole: 1/4 Inch Thread Color: Black Package List 1 x Helmet Extension Arm