Compatibility: This standard waterproof housing case compatible with GoPro Hero 3, Hero 3+, Hero 4 Black and Silver action cameras perfectly. Compact, lightweight and super suitable. Waterproof Up to 131 ft(40M): Duo to the solid shell, tight buckle and waterproof sealed design, this waterproof housing case offers water resistance up to 147 ft(45m). Rustproof in Seawater: The buttons, thumbscrew and other metal parts are made of 316 stainless steel, which ensure antirust in sea water, durable for long term use. Made of Superior Materials: The waterproof housing case is made of solid transparent plastic, the lens is made of high transmission flat glass (light transmission rate of 98%) which delivers maximum image and video sharpness underwater. Not like other items on market, the lens border is made of aluminum instead of plastic which ensure waterproof in deep water. Wide Range of Use: This waterproof housing case not only protect your GoPro Hero 3/3+/4 camera from dust, scratches and shocks, but also ideal for diving, snorkeling, surfing, skiing, drifting, skydiving and other extreme activities.