Features: 1. Waterproof / Use: 40 Meters (Limit) / Waterproof Shell Adopts Symmetrical Lock, The Structural Performance Is Very 2. The Shell Is Thickened And Stronger And Not Easy To Deform, Not Only Can Dive, Also Protect Your Camera And Lens In An All-Round Way To Avoid Your Camera From Scratching And Scratching. 3. Lens Material: Using Optical Imaging Tempered Glass, The Lens Material Transmittance Is To 92% 4. Re-Coating Ar Additional Film Layer To Make The Lens Transmittance Reach More Than 98%, And Then Coating The Waterproof Film Layer 5. The Drip Angle Reaches 115 Degrees To That The Water Droplets Do Not Leave The Surface Of The Lens And Affect The Effect. Shell Material: High Transparency Corrosion-Resistant Pc/ 2805 Waterproof Ring Material: Amorphous Highly Active Silicone The Main Body And The Back Cover Connect Shaft Material: High Hardness 304 Stainless Steel size: 15 x 7 x 3.5cm Material: PC+silicone+stainless steel colour: As shown Package Contents: 1 x Waterproof Case 1 x Invisible Base 1 x Screw 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.