for insta360 X5 invisible diving shell Function: 360-degree 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° invisible Blind spots are completely eliminated The new invisible waterproof shell can be 360° invisible and below the water Material for anti-stain and anti-fingerprint buttons: steel Material for waterproof amorphous high-activity silicone Material for connecting shaft between the main body and the back cover: high-hardness 304 steel Product weight: 135g Product size: 156*84.2*83.6mm Product weight: 134g Total weight (including packaging): 360g Packaging size: 240*122*95mm Packaging: cardboard box packaging Packing list: waterproof shell invisible base screw anti-fog sheet storage bag instruction manual