CameraPlus&reg; 100M Waterproof Diving Housing for GoPro Hero 3 / GoPro Hero 4 - Alumimun High quality world class standard. Manufactory certificated: ISO9001 and CES and IPx8 degrees Material:Aluminium alloy,Clear plate glass.EPDM rubber,O-ring,etc. 'O' ring sealed with spring loaded protect your camera properly Very easy to use case, all the buttons work just like they would on the camera itself. Touch screen compatible.Clear view to LCD display and full controls. With accurate Alarm Buzzer equipment, The alarm with raise up if any water get into the case, make your camera well protection.Ideal for diving at sea, surfing, snorkeling, skiing, yacht or other activities. Also suitable for rainy, snowy etc environment. Please note: silicon grease is required for this underwater case and NOT included due to US shipping regulation restriction. Please purchase one separately from a professional dealer.ATTENTION! Please remove all accessories on your camera (If you have one Equipped) Before putting the camera into Underwater Housing/Case.