★【Diving Tank】：The diving tank is made of aviation aluminum, which is strong and light, with strong pressure resistance, up to 3000PSI/200BAR/20Mpa. All diving tanks are DOT certified, safe and reliable. The submersible tank is equipped with a light-emitting pressure gauge, made of 316 stainless steel, and functions as usual at 60 meters underwater, so that you can know the remaining air in the tank at any time..★【Respiratory System】: Chrome-plated full brass breathing head + full aluminum breathing valve, equipped with a mask connector, anti-rust, seawater corrosion resistance, not easy to block. The all-silicone respirator has a built-in advanced filter, which can be used with the mask adapter and snorkeling mask to let you breathe freely underwater. According to the breathing rate and diving depth, a 1L capacity diving tank can let you breathe 340 times under water for about 20 minutes..★【Portable】：After you disassemble the diving equipment, you can take it on the plane and accompany you to any place for diving. This is a scuba breathing device suitable for recreational diving within ten meters.The mini-light diving cabin is suitable for underwater exploration, boat cleaning, emergency insurance, backup air source, etc..★【Package content】： 1*S5000B Air Tank+Breathing valve; 1*Manual Pump; 1*Refill Adapter; 1*Mask Converter;1*Snorkeling Mask;1*Hand Bag; 1*Diving Storage Bag . Children under ten years old are not allowed to use, junior divers must be accompanied by an instructor..★【After-sales service】: 24-hour after-sales service, please contact us if you have any questions during the purchase process, we will reply within 1 working day. If the product has quality problems, contact us in time for free replacement.