[Perfect Compatibility]Specially designed for Insta360 ONE X panoramic camera, ensuring a seamless fit and full functionality. [30-Meter Waterproof Protection]Robust waterproof casing allows for underwater photography up to 30 meters deep, ideal for various water sports and activities. [High-Quality Optical Glass]Features optical imaging tempered glass with up to 98% light transmission, enhanced by AR coating and a water-repellent layer for clear, unobstructed shots. [Durable Construction]Made from non-crystalline, highly active silicone and corrosion-resistant 304 stainless steel for long-lasting protection. [Easy Installation]Equipped with a standard screw mount for quick and convenient setup and use. [Enhanced Sealing]Provides superior waterproofing and effectively prevents dust ingress, ensuring your camera stays clean and dry. [Versatile Use]Perfect for surfing, diving, swimming, selfies, mountaineering, skydiving, skiing, and various other water sports and outdoor activities. Specifications: Model: PU400 Compatible with: for Insta360 ONE X panoramic camera Waterproof Depth: 30 meters Material: Non-crystalline high-activity silicone + 304 stainless steel Lens Material: Optical imaging tempered glass Light Transmission: Up to 98% with AR coating Water Repellent: 115-degree water drop angle Weight: 135g