1. Anti shock and anti drop, effectively protecting your camera. 2. It does not harm the body, and the protective frame is reserved with a sound receiving hole to improve the experience. The angle can be adjusted to meet different needs. 3. 1/4inch adapter, can be used with time selfie sticks, tripods, extension bars, backpack clips, car suction cups, bicycle clips, etc Supported water depth: 40 meters Applicable: For Go3/ Go3S Thumb Camera Product functions: waterproof, dustproof, anti drop, anti pressure Lens material: Tempered glass, with a transmittance 99% and a hardness 9H Colour:Transparent Material:PC+optical tempered glass+stainless steel Package Contents: 1 x waterproof case 1 x buoyancy bar (blue) Only the above package content, other products are not included. Note: Light reflection 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.