1.This waterproof case can carry the camera to the underwater 40M and can protect your camera intact, you can enjoy the world under the record. 2.color light- parent materials not affect your results. 3.The two sides of the lens are respectively coated with optical film and waterproof film, and have high parency. 4.This waterproof case is made of environmentally friendly PC material and 304 stainless steel. 5.in addition to the waterproof function, it can also protect your camera in outdoor -country.in the cold and winter, use it also bring you the image effect you want. Product parameters: appellation:waterproof case application:for hero3/4 waterproof case Colour: parent color + black Material:PP specification:9.5*5.5*10cm Package Contents: 1 * Crystal case 1 * accessories tripod Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.