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. The position where the air switch button is installed on the water tank is generally the opening position of the soap dispenser, and the appropriate size can be selected according to the opening of the soap dispenser. This product is suitable for air pipe with inner diameter of 3MM. It is suitable for the control of pneumatic switch for garbage disposer, jacuzzi and children's toys. Specifications: Condition: Brand New Material: ABS Engineering Plastic, Stainless Steel 304 Spring, Silicone Gasket Product surface: Bright Chrome Mounting hole: approx. 28mm / 1.1in Size: approx. 6.5*3.8*3.8cm / 2.6*1.5*1.5in Package list: 1 * Air Pressure Switch . Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ording.