0.5L Empty Mini Scuba Tank, Aluminum Pony Bottle (Green) - S3000 Mouthpiece, Storage Bag & Refill Adapter, No Pre-Filled Air, for Snorkeling Diving Emergency Training

["0.5L Empty Mini Scuba Tank with Full Accessories This set includes a 0.5L empty aluminum pony bottle, S3000 breathing mouthpiece, protective storage bag, and refill adapter, meeting your basic needs for shallow water diving and snorkeling activities right out of the box. (No pre-filled air included)","2、Lightweight & Portable Aluminum Pony BottleMade of high-quality 6061-T6 aviation aluminum alloy, the compact and lightweight design makes this mini scuba tank easy to carry and store, ideal for outdoor water sports, travel, and emergency backup use.","Ideal for Snorkeling, Diving & Emergency TrainingPerfectly designed for recreational snorkeling practice, shallow diving training, underwater photography, and emergency backup air supply, this portable diving tank is a reliable partner for all kinds of underwater activities.","Wide Refill Compatibility & Easy InflationEquipped with a universal refill adapter, this empty pony bottle supports multiple inflation methods, including compatible air pumps and compressors, offering flexible and convenient refilling options for your diving adventures.","5、Durable & Safe Construction for Underwater UseOne-piece molded tank construction delivers outstanding high-pressure resistance and corrosion resistance, with anti-rust surface treatment for long service life, providing safe and stable breathing support for your underwater exploration."]