GoPro Aluminum Underwater Housing Cage for Hero 3/3+/4 Camera - BlackKey Features Can use with the Hero 3, Hero 3+ and Hero 4 underwater housing or skeleton frame Full cage coverage provides a protective design that is impact proof, crash proof, and crush proof Secured by six points of contact, which means you will not have to rely on just a finger mount 43 Threaded Holes. Compatible with all GoPro camera add on accessories Full access to all GoPro ports, switches and card slots Description This GoPro Aluminum