1、With food grade ABS engineering plastics, it is durable and has a long service life 2、One-piece molding, six-fold plating process, stylish, high-end 3、After the ultimate elastic test for 50w times, no deformation, no cracking, no air leakage 4、Easy to install, insert the trachea directly into the tracheal interface 5、It is suitable for the control of pneumatic switches for garbage processors,massage bathtub, children's toys and other products 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 New Material: ABS Engineering Plastic, Stainless Steel 304 Spring, Silicone Gasket Product surface: Bright Chrome Mounting hole: approx. 34mm / 1.3in Size: approx. 4.5*4.5*6.5cm / 1.8*1.8*2.6in Package list: 1 * Air Pressure Switch