1、PREMIUM MATERIAL: Dive regulator set, made of premium stainless steel, ABS, silicone materials, sturdy structure, not easy to be damaged, long service life, suitable for deep diving and for BCD submersibles. 2、ADJUSTABLE: The diving regulator is designed with adjustable breathing control valve, which is convenient to regulate airflow and provide a comfortable diving experience. 3、SAFE AND RELIABLE: Dive regulator system, first and second stage valve head design, ensure safety and stability when breathing underwater. Easy to install, tight connection without falling off. 4、COMPACT AND LIGHTWEIGHT: 1st 2nd valve dive regulators are designed to be compact and lightweight without adding extra burden, easy to carry and operate, ideal for diving enthusiasts. 5、PROFESSIONAL EQUIPMENT: These first and second stage valve diving regulators are suitable for professional divers and scuba diving enthusiasts, providing premium diving rebreather equipment. Item Type: Dive Regulator Material: Stainless Steel, ABS, Silicone 1 x First Stage Valve Head 2 x Second Stage Valve 3 x Packs of Accessories (20pcs in Total) 1 x Instruction Manual