for insta-360 X5 fully invisible diving shell Function: 360-degree fully invisible, blind spots eliminated, waterproof 50 meters Material: PC + high-definition optical glass 1: The lens material is PMMA, with a transmittance of 95%. After for anti-reflection film coating, the transmittance can reach 98%, AS waterproof and anti-fingerprint film, AS hard film, appearance hardness of 5H, comparable to the hardness of ordinary glass, scratch-resistant, so that you can take photos with one lens in hand without worry 2: The shell is made of hardened PC, with 10-grade fine lines inside and outside, making the product scratch-resistant and textured, 3. Upgraded 360° fully invisible Blind spots are completely eliminatedThe new fully invisible waterproof shell can be 360° invisible above and below the water Material for anti-stain and anti-fingerprint buttons: stainless steelMaterial for waterproof ring: amorphous high-activity siliconeMaterial for connecting shaft between the main body and the back cover: high-hardness 304 stainless steel Package Content:1*Waterproof Case