Gopro Hero Extension Arm - TOOGOO(R) Aluminium Extension Arm Metal Pole Mount Helmet for Gopro Hero 2 3 3+ 4 SJ4000 100% Brand New Use this Aluminium Extension Arm to catch new fixed extended perspective videos and photos. Fit it between your GoPro camera and helmet mount, side mount or hand grip and take your shots to the next level Made of CNC machined Aluminium Size: Approx. 16.3cm x 1.6cm x 1cm/ 6.4" x 0.6" x 0.4"