For DJI Osmo Action 3 4 PULUZ 40m Underwater Waterproof Housing Diving Case with Cold Shoe & Buckle Basic Mount & Screw Features 1. Fully compatible with DJI Osmo Action 3 4 camera. 2. Durable and usable, anti-surf pressure will not damage its photographic effect. 3. Come with one standard screw, easy and convenient to install and use. 4. Protecting the tightness of the shell, not only better waterproof, but also more effective to prevent small dust into the camera. 5. Add cold shoes bases on top and at side, which can connect light lamp, microphone and other auxiliary shooting accessories. 6. 40 meters full body underwater waterproof design, ideal for diving, snorkeling, swimming and other water sport activities. Specifications 1. Shell material: high transparency and corrosion resistant Germany Bayer 2805 PC 2. Waterproof depth: 40 meters 3. Lens material: Optical imaging tempered glass, AF AR double-layer optical coating 4. Button material: Aluminum alloy 6063 5. Spring material: 304 stainless steel 6. Waterproof ring material: Amorphous high activity silica gel 7. Main body and back cover connecting shaft material: 304 stainless steel, high hardness and corrosion resistance 8. Application: Skiing, surfing, diving, swimming, selfie, swimming, climbing, skydiving Package List 1. Waterproof Case x 1 2. Release Quick Buckle x 1 3. Long Screw x 1