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 leakage. The position where the switch button is installed on the water tank is generally the opening position of the dispenser, and the appropriate size can be selected according to the opening of the dispenser. This product is suitable for pipe with inner diameter of 3MM. It is suitable for the control of pneumatic switch for garbage disposer, and children's toys. Specifications:Condition: 100% Brand NewMaterial: ABS Engineering Plastic, Stainless Steel 304 Spring, Silicone GasketProduct surface: Bright ChromeMounting hole: approx. 28mm / 1.1inSize: approx. 6.5*4.5*4.5cm / 2.6*1.8*1.8inPackage list:1 * 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.