Upgrade Version: We redefined the air switch, made of real stainless steel, never worry fade away and fall off, more elasticity and flexiable Two Power Module Installation Methods: You can use screws to fix the power module part, or use strong nano-markless hook sticker to attach directly to the wall. Both ways are very strong Safety & Security: The power module allows any garbage disposal power cord to fit safely and securely without any issues. The power line is attested by UL for security and long-term use Easy To Installe Air Button: Just drill a not less then 1-1/4 diameter hole in the sink, counter-top or front of the sink cabinet, place the rubber gasket between the push button and the top of the sink counter. Tighten the plastic nut under the sink counter to ensure a watertight seal Air switch kit includes: Single outlet power module, 5 ft long air tube, 2.5 ft power cable, long(2.7'') stainless steel air switch button, set screws and strong nano-markless hook sticker