Features:With food grade ABS engineering plastics, it is durable and has a long service life.One-piece molding, six-fold plating process, stylish, high-end.After the ultimate elastic test for 50w times, no deformation, no cracking, no air leakage.Easy to install, insert the trachea directly into the tracheal interface.It is suitable for the control of pneumatic switches for garbage processors, massage bathtub, children's toys and other products.Specifications:Condition: 100% Brand NewMaterial: ABS Engineering Plastic, Stainless Steel 304 Spring, Silicone GasketProduct surface: Bright ChromeMounting hole: approx. 34mm / 1.3inSize: approx. 4.5*4.5*6.5cm / 1.8*1.8*2.6inPackage list:1 * Air Pressure Switch