What is this?The garbage disposal air switch button can be easily installed on the water tank. Compared with the traditional wall switch, the garbage disposal air switch button is more convenient and simple to install, and can replace the traditional wall switch. It is mainly used in the kitchen sink, bathtub, etc.What will I get?Garbage disposal air switch button, is in size of : 28mm/1.1-inch installation diameter, 38mm x 64mm/1.5-inch x 2.52-inch(Dia x Length), AC125/250VIn the package of: 1 x Garbage Disposal Air Switch ButtonIs there any advantages of the product?Easy to install. It only needs to drill 28mm diameter holes to install the garbage disposal air switch button on the sink top ; Convenient operation, firm and durableHow to use it?Steps of installation: 1. Appropriate diameter of drilling hole; 2.