Material: This diving regulator uses Metal as the material which is wear and so that can be reused for a long time. Adjustable: By using this underwater dive adjusting tool can adjust the breathing air when you are diving underwater. Portable: This brass intermediate pressure gauge is small in size and so that can be put in your bag. Spare part: The snorkeling breathing accessory is suitable to be used as a replacing part to repair the diving accessory. Fit occasions: This professional repair replacing part can be used in many occasions, such as outdoor underwater swimming and diving. Colour:silver+black Material:Metal Package Contents: 1 x Diving Regulator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.