Portable and Easy to Carry: This reusable scuba diving tank is designed for convenience. After you disassemble the compact scuba tank, you can take it with you on any airplane and enjoy your dream vacation Constant Pressure Valve Brings A Smooth Breathing: Diving scuba cylinder adopts a constant pressure air outlet device, providing a consistent air supply in different environments and diving depths to ensure a comfortable and safe underwater exploration Up to 10 Mins Breathing Time: The capacity of the portable scuba tank is 0.5L, which can provide about 5-10 minutes of breath. Suitable for diving in shallow water such as diving exercises, swimming pool salvage, or for emergency underwater search and rescue Durability and Safety: DEDEPU mini scuba tanks are made of high quality Aluminum Alloy, which have exceptional durability and corrosion resistant. All lung tanks are DOT-certified to ensure safe and reliable diving experience Well Made: Equipped with an instant waterproof luminous meter, you can easily monitor the remaining gas level of your tank during dive. Please do not exceed 33ft diving depth