1. PC Material, High-Definition, Pressure- And Explosion-Proof, Waterproof To A Depth Of 40 Meters, Strong Plasticity, And Strong Flame Retardancy 2. The Card-Groove Sealing Rubber Ring Prevents Water Ingress, The Greater The Water Pressure, The Tighter The Seal 3. Built-In Sponge Rubber Pad To Prevent Shaking From Damaging The Screen 4. Three-Fold Buckle Design, Buckles More Tightly And Is More Secure To Use. 5. Stainless Steel Rubber Ring Seals The Button, Watertight, Safe To Use, Product Use: Diving, Surfing, Parachute Model: For Hero11 Black Mini 40m Action Camera Diving Case Product Size: About 78x88mm Colour:Transparent + black Material:PC+stainless steel Package Contents: 1 x Waterproof Case 1 x Short Screw 1 x Movable Base 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.