Features: Made of light Acrylic material, good quality. 30m under water helps you capture your movements of every kind of water sports activities to a maximum degree. Clear and vivid shooting effect with the light transmission material. Built in transparent lens glass for better image capture quality. Durable and usable, anti-surf pressure won't damage its photographic effect. Easy to connect with other GoPro accessories.? Package includes:  1* waterproof case  1* base  1* long screw Note:Only for GoPro Hero 7 Silver/ White,not for Gopro 7 Black.