Usage Tips:Function: 1. Scope of application: Ideal for controlling pneumatic switches for products such as garbage processor, massage tub, children's toys and so on. p > 2. Easy to install: garbage disposal air switch can be easily installed on any countertop or sink, mounting hole is about 28 mm m1.1 inch. 3. ABS material: made of ABS material, durable, waterproof and tight, excellent workmanship makes the products durable, not easy to damage. 4. Strict fit: the upper air switch of the garbage disposal sink strictly matches the opening position of the machine with the exact shape and size. 5. Good workmanship quality: the garbage disposal button adopts excellent workmanship, beautiful appearance, providing a great user experience. Specification: Article type: air pressure bath switch Material: ABS Color: as shown in the pictures Weight: Ok. 29g/1,0 ounce Installation aperture: Ok. 28 mm Package list: 1 x air pressure bath switch