D&F is designated distributors by SHOOT Official,all Dome Port are authorized by SHOOT Official manufacturers, so we all of dome port sold by D&F Store are 100 Percent Brand New item. we provide 12-months and technical Q&A services. Features: 1. Adopt dome and waterproof case integrated design, prevent the possibility of water leakage. 2. 180 Degree Super wide angle, real reduction and provide super wide field view. 3. The dome is made of optically acrylic, light transmittance is up to 95 Percent . 4.Waterline Marking: There's a handy waterline marking on the back of the housing, it helps you to get 50/50 air and water pictures easily. Specification: Color: Black Dome Port: 520g Package Weight: 750g Waterproof: 45m/147ft Dome Material: PC+Acrylic Pullover zip-up Cover: Neoprene SBR Dome Size: 24.5cm 18cm 10.5cm (9.6in 7.1in 4.1in) Kindly Note: 1.Don't forget to installed 2-3pcs Anti-fog insert to prevents lens fog in cold and humid environment. 2.Please rinse the dome with fresh water after seawater use, and keep cool and dry when storage. 3. Be careful when removing the Neoprene SBR protective cover to prevent the zipper from scratching the mask Packing List: 1X Dome Port 1X Pack Anti-fog pads 1X Protective Cover 1X User Manual 1X Original Package Case NOTE: Camera not included ?We Promised: This dome sold by D&F Global Store will be provided 12-months , Lifelong professional use guidance service. If have any problem of the item, please don't hesitate to contact with D&F after-sales team, we are here to helps you.