3 Brand Name: smaco Origin: CN(Origin) Certification: CE Certification: DOT Model Number: mini scuba diving tank type1: Swimming mask type2: For swimming type3: Underwater mask type4: kids snorkeling type5: mini diving bottle type6: swimming equipment Delivery Takes 4-10 days.

3 Specification: Diving Oxygen Cylinder Capacity: 0.5L/500ML Material: Aviation Aluminum Color: Green Connector Model: M18 x 1.5 Max. Pressure: 3000PSI / 200bar / 20MPas Available Time: 6~10min(Depending on the water layer) Max. Dwell Time Underwater: 10min Size: Approx.36.3*6cm/14.29*2.36" Application: Diving for entertainment,Diving for training Spare tank diving air Delivery Takes 4-10 days.