Compatible - Suitable for kitchen sink waste disposal with standard 3 1/2 inch diameter kitchen drain hose. It can also be used as a drain plug/non-drain plug Easy to use quick release sink plug is a convenient way to cover a sewer or waste disposal facility to prevent water flow, keep water in the sink and protect your Garbage disposal facilities. No tools required, just plug the drain. Protection - Prevents unwanted objects such as dishes, plates, or other waste from entering the trash can, causing internal damage and malfunctions that damage the waste can. MEASUREMENTS - Standard diameter is 3 1/2 inches, with a rubber gasket around the hardware to provide a tight seal and prevent water ingress. Stands 7/8" tall and includes a handle for easy grab and go. Size: 3.35*1.18cm