Welcome to the store! 1. The touchscreen back is not included. Setting camera parameters after installation is difficult; you must remove the camera to use it. With the touchscreen back, you can still use the camera without removing it, even after installation. 2. The optical design encases the lens, enhancing the waterproof lens's protection, making focusing easier and restoring the clarity of the pure metal lens. 3. Strong sealing, factory pressure tested. 4. Why use an anti-fog insert? When diving, swimming, skiing, surfing, and mountain climbing, etc., sports cameras use waterproof cases. A temperature difference between the inside and outside easily creates aerosol inside the waterproof case, necessitating an anti-fog insert to absorb moisture and prevent lens fogging. (Reusable after drying!) 5. The touchscreen back is not included. To use camera parameters, you must open the waterproof case. This is inconvenient when diving or swimming. Excessive use can cause fogging due to water ingress, resulting in unclear images. 1. Applicable Models: For Max 2. Material: PC + 316 Stainless Steel + Tempered Glass 3. Type: For Max Waterproof Case Color: As shown Package Contents: 1 set camera waterproof case (including screw base and anti-fog insert) 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 to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm. Your satisfaction is our top priority. We will provide you with the best service. If you encounter any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide the best solution!