SHOOT Mini 2.0 Version 4'' inch Diving Underwater Lens Hood Dome Lens Dome Port for Gopro Hero 3+/4 Black Silver Camera Underwater Photography Specifications-Package dimension:8.2inch x 6.7inch x 3.9inch,Shipping weight:670g,Material:PC+ABS 50/50-By moving the waterline away from the GoPro lens,a dome port dramatically improves camera's underwater functionality and image quality.Plus,it allows you to make those sick split photo shots that are half underwater,half above it Waterproof-To make sure the dome's waterproof ability,our factory did the Hydrostatic Water Pressure Test for every dome,waterproof to a depth of 98ft/30m Compatibility-Compatible with GoPro Hero 3+/4 Black Silver Camera Package Includes-1x Dome Port with waterproof housing case + 1x Floaty grip + 1x SHOOT Velvet bag