For Insta360 GO Ultra aMagisn Waterproof Filter Aluminum Alloy Frame Anti-fog Lens 1. Waterproof filter for Insta360 GO Ultra, providing an unobstructed view with no vignetting. 2. Multi-layer coating: Minimizes light reflection between lenses for enhanced image clarity and superior picture quality. 3. Imaging-grade optical glass ensures high-definition image quality, is scratch-resistant, and repels water and oil. 4. Built-in silicone gasket in the frame effectively isolates water droplets and moisture, enabling worry-free creation in rainy, humid, or low-temperature environments. 5. Durable aluminum alloy frame is reliable and sturdy, featuring laser-engraved markings that won't fade or discolor. 6. Non-slip textured edges on the frame provide a comfortable grip and prevent slipping when installing or removing the filter. 7. Material: Aluminum alloy + Silicone + Glass 8. Single filter weight: 3.5g