Features 1、Adjustable: Engineered with an adjustable pressure secondary breathing valve, ensuring stable and easy breathing during your diving experiences, enhancing safety and comfort underwater. 2、Reliable Design for Scuba Diving: Featuring a well designed second stage valve on the oxygen cylinder, this diving breathing valve offers stability and reliability, making it an ideal fit for a variety of scuba diving equipment. 3、Durable Mid Pressure Tube: With a sturdy and wear proof medium pressure tube, the valve guarantees a long lifespan and consistent performance, making it a dependable addition to your diving gear. 4、Tailored for Diving Enthusiasts: Specially designed to meet the needs of diving enthusiasts, this set offers excellent diving equipment accessories that elevate your underwater exploration experience. 5、Easy Installation and Use: This diving breathing valve is easy to install, convenient to carry and use, enabling a pleasant and safe diving experience. No matter your diving proficiency, this valve is designed to provide seamless breathability underwater. Item Type: Diving Breathing Valve Material: ABS, Stainless Steel, Silicone Weight: Approx. 636g/22.4oz Package List 1 x Diving Breathing Secondary Valve 1 x Medium Pressure Tube