1Wide Compatibility: Helmet mount extension pole is compatible for insta360 X3, ONE RS, GO 2, ONE X2, ONE R, ONE X action cameras etc. Universal aluminum alloy mount, compatible with dual blade slots and 3 blade slots for sports cameras and accessories. 2Extension Arm: The 85mm extension length helps to capture a wider shooting perspective and record your cycling activities from a first person point of view, very practical. 3Sturdy and Durable: The extension arm is made of aluminum alloy, rustproof, rugged and durable, lightweight and stable, CNC integrated molding process, not easily broken. 4Hollow Design: This helmet mount possible to greatly reduce wind resistance during riding and improve the stability of shooting. Center hollow design, almost weightless when mounted on a helmet. 5Multi Purpose: The extension arm mount can be widely used in outdoor sports such as skiing, skateboarding, cycling, motorcycle, parachuting, etc. 1 xHelmet Mount Extension Pole Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin