VEVOR Mini Scuba Tank with Sub-Mask, 0.5L Portable Small Diving Tank for Underwater Breathing, Reusable Lung Diving Cylinder up to 10 Minutes Dive Time, Emergency Rescue Pony Bottle for Snorkeling

VEVOR Mini Scuba Tank with Sub-Mask, 0.5L Portable Small Diving Tank for Underwater Breathing, Reusable Lung Diving Cylinder up to 10 Minutes Dive Time, Emergency Rescue Pony Bottle for SnorkelingBeginner-FriendlyHigh-Pressure ResistanceEasy to Observe & RecordMultiple Refilling MethodsTravel-Friendly & PortableLuminous Pressure GaugeTank Wall Thickness: 0.2 in / 4 mm,Tank Thread: M18 x 1.5,Tank Capacity: 0.13 Gal / 0.5 L,Tank Mouthpiece Material: Silicone,Maximum Diving Depth: 9.8 ft / 3 m,Diving Mask Material: PC, Liquid Silicone,Item Model Number: S300PLUS-1,Product Weight: 4.9 lbs / 2.2 kg,Maximum Tank Filling Pressure: 20 MPa,Tank Diameter x Height (Tank Only): Φ2.4 x 11.8 in / Φ60 x 300 mm,Tank Refill Port Size: 0.3 in / 8 mm Male Connector,Tank Material: Aluminum