1、APPLICABILITY: This 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 220mm, 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 CLIP: 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. Item Type: Camera Helmet Extension Arm Material: Aluminum Alloy Weight: Approx. 36g / 1.3oz Applicable Models: For Insta 360 X3, ONE RS, GO 2, ONE X2, ONE R, ONE X And Other Action Cameras Length: 220mm / 8.7in (10-20mm / 0.4-0.8in Error) Color: Black Expansion Hole: 1/4 Inch Thread 1 x Camera Helmet Extension Arm