Features: l Built-in rubber ring, waterproof and anti-fogging l Equipped with disassembly wrench, more reliable rotary mounting l Double-sided multi-layer coating, reduce light reflection, clearer image, better picture quality l Thick glass lens, upgraded protection l Transparent image, no dark corners Specification: l Material: ABS+Glass l Size: 35.3x35.3x7.2 (mm³) l Types (Optional): Ace Pro-UV, Ace Pro-CPL, Ace Pro -CPL+ND8+16+32, Ace Pro-ND8+16+32+64, Ace-UV, Ace-CPL, Ace-CPL+ND8+16+32, Ace-ND8+16+32+64 l Applicable Model: for Insta360 Ace/Ace Pro Package: l 1x Filter+1x Wrench