This waterproof case is compatible with GoPro Hero 4 Black, Hero 4 Silver, Hero 3+, and Hero 3 edition cameras. It provides reliable protection for sea diving and extreme activities, with a waterproof depth of up to 40 meters (131 feet). Featuring a large flat glass lens, this case ensures maximum image sharpness both above and below water. The lens is made of high-quality transparent glass and installed by professionals, guaranteeing an excellent shooting experience. The screw and buckle of this case are made of 316 stainless steel, which is highly resistant to rust in seawater. Made of high-quality and lightweight materials, this case is not only sturdy and durable, but also convenient to carry during your adventures. Key Features: Compatible with GoPro Hero 4 Black, Hero 4 Silver, Hero 3+, and Hero 3 edition cameras Waterproof up to 40 meters (131 feet) Large flat glass lens for maximum image sharpness 316 stainless steel screw and buckle for rust resistance in seawater High-quality transparent glass lens installed by professionals Made of high-quality and lightweight materials Sturdy and durable construction Convenient to carry during adventures