Action Camera Protective metal case Housing Shell CNC Aluminum Frame Case Alloy Protective Cage with 37mm UV Lens Filter & Lens Cap for GoPro HERO4 4 + , Blue The new than the old advantages. Increase safety shield using groove design, quick loading and unloading.Round protection of your camera, never let you camera fall . 1/4 inch screw hole, compatible with any tripod/monopod. It can be mounted on UV lens, filter lens, polarizing lens of diameter 37mm. Can be mount and compatible on helmet, bicycles, chest strap, head strap and other Hero4 accessories. All Aluminium alloy made,effectively prevent unnecessary camera demage.Prevent camera from crash caused by overheating. Suite for Gopro HERO 4 / 3+ Action Camera