Features: The semi-circular dome design disperses underwater pressure and provides better waterproofing, 360 degree dome design ensures no blind spots in underwater photography. The shell material is high transparency acrylic material, with a light transmittance of up to 90%. Waterproof to a depth of 60m, making photoshoots more exciting. Double interfaces design, better matching with accessories to meet different photoshoots needs. The circular dome is equipped with a silicone cover to prevent scratches and abrasions from affecting your photoshoots experience. Widely used for surfing, diving, swimming, selfies, traveling, mountaineering, skydiving, etc. Specifications: Material: ABS, Acrylic, 316 Stainless Steel, Silicone Size: approx. 16.5x6x6cm/6.5x2.36x2.36inch Applicable Model: for Pocket Handheld Sports Camera Waterproof depth: 60m/196ft Package Includes: 1Pc Waterproof Housing 1Pc Silicone Case 1Pc Thumb Screw 1Pc Base note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.