Protect the contact between the lens module and the main body, prevent oxidation short circuit, dustproof and waterproof. | Compression moulding forming, soft hand feeling, no deformation, anti-tear and anti-friction. | Anti-foreign body, protect each lens interface from water, dust and foreign body damage. | Silicone material, feel comfortable, do not touching the lens interface, and interface close fitting, not easy to fall off. | Prevent conductive particles from entering the interface and damage the lens module by short circuit.