Many options for your choice, pls choose the one you need.
Details:
Type: Helmet Short Bending Extension Arm Connector Mount
Length: 7.5cm
Compatible: for GoPro Hero 11/10/9/8/7/6/5/4/3+/3/2/1 Action Camera
Package Content:
1 x 7.5cm Extension Arm Connector
(Note, Item do not include the Camera or Helmet and so on, Only one Extrension Arm)