1.Specially designed protective Lens guards for Insta360 X4. 2. Made of high light transmission and corrosion resistant PC Germany Bayer 2805, the lightweight and compact design adds little strain to your action camera. 3. Installation of the high-resolution lens is easy. Hold it in place with your hand and gently rotate it for a snug fit. 4. Waterproof, oil-proof, dust-proof, and collision-proof, it can prevent your action camera lens from scratches and impacts. 5. Lens protection cover is made of high - light material with 92% light transmission. No need to disassemble to take pictures.