The Vevor garbage disposal air switch kit provides convenient push-button control for food waste disposals up to 2 HP. Its 2.5" brushed silver stainless steel button is designed for stainless steel sink countertops and fits standard sink holes from 1.25" to 1.38". The waterproof button and air-pressure operation help keep electrical components away from the sink surface for safer use. An included 4.92' air tube supports straightforward installation with a grounded 110-130V outlet. This kit is built for reliable daily kitchen use with a durable, rust-resistant finish.