About Product:1. Real machine mold opening, fully suitable for Insta360 X3 action camera.2. The lens material is PMMA, with a light transmittance of 95%. After coating with AR anti-reflection film, the light transmittance reaches 98%. It has an AS waterproof and anti-fingerprint film, and an AS hard film. The surface hardness is 5H, which is comparable to the hardness of ordinary glass and is anti-fingerprint. scratch scratch;3. The protective shell is made of hardened PC, scratch-resistant, textured, anti-splash and anti-fingerprint;4. 360-degree total invisibility, eliminating all blind spots; unique optical spherical lens design, underwater panoramic splicing, can restore a seamless panoramic picture;5. 50-meter full-body underwater waterproof design, very suitable for diving, snorkeling, swimming and other water sports.6. Waterproof ring material: Amorphous highly active silica gel7. Material of the connecting shaft between the main body and the back cover: High hardness 304 stainless stee