Made of high-quality plastic, easy to float, bright orange stands out under water. Easy to install and detach, install in the waterproof shell to use. Universal mount can be used for many items with mounting base, such as chest strap, wrist strap, self-timer and buoyancy rods. It is suitable for using with GoPro Hero 4/3 + / 3 waterproof shell and using with GoPro Hero 5 Black frame shell. Great for surfing, diving, snorkeling, swimming, canoeing, jet skiing and other water activities..