Check the listing for details. Air Switch Kit for Garbage Disposal 3.58” Extra Button Black Stainless Steel. Condition: New. Listed at 24.99 USD. Item description Easy to install: No tools required for most kitchen sinks with holes for soap dispenser. You can also drill a hole with diameter between 1-1/4” and 1-3/4” to fit it on any countertops. 3.58” Extra Long for Any Countertop: The air switch button is 3.58” long, which fits any stainless steel sinktop and thicker countertops, like marble, quartz and granite, much wider applicable than those short 2.5” ones for stainless steel countertop only. Safe and Reliable: With HK air switch kit, you can easily and safely switch on your garbage disposal even with wet hands. The power-supply cord is 18AWG and UL certified for long service time and high safety, suitable for 110V. Package and Warranty: Package includes 1x Single Outlet Power Module, 1x Air Button (3.58” long), 1x 5ft Air Tube. Two colors of button for you to choose freely: button covered by brushed stainless steel or black stainless steel.