HOW TO CHOOSE BUTTON: For better fitting, you should choose the SHORT/2.5 or the LONG/3.5 button depending on the thickness of your countertop. In most cases, SHORT is for a stainless steel sink top and LONG is for thick countertop like granite, marble, quartz. SAFETY & SECURITY: The Power-supply Cords are attested by UL for security and long-term use. Suitable for voltages from 110V to 130V. EASY TO INSTALL: Can be used by plugging into the socket without tools installed. No extra screws. EXCELLENT COMPATIBILITY: It can work with any brand of garbage disposals(≤2HP), perfectly compatible with Waste King, ISE, Moen, GE and so on. NOTES: The diameter of the countertop hole should be between 1 1/4 and 1 4/5 . It is suitable for standard sink hole for soap dispenser. Color Plastic Black Brand Name CLEESINK Head Style Hex Unit Count 1.0 Count Item Length 2.5 Inches Finish Types ABS Manufacturer CLEESINK Model Number HBa004A Material Type Plastic Operation Mode Mechanical Package Quantity 1 Included Components Air Switch Measurement Standard SAE Manufacturer Part Number 046B1WM