Specification:_x000D_Features:_x000D_1. The cover of switch button for food waste disposer is 304 stainless steel constructed while the thread plug is ABS plastic with durability to service for a longer time._x000D_2. No tools needed to install the strainers or stopper. Easy to clean by removing it and cleaning with soap water._x000D_3. May be mounted on the counter beside the sink or in an existing hole drilled on the sink ledge._x000D_4. Can also be used in food waste disposer, massage tub, pumps for swimming pools, outdoor machines, automotive applications etc._x000D_5. Note: please double-check the sizediameter before placing an order._x000D_Notice:_x000D_Actual color may be slightly different from the image due to different monitor and light effect._x000D_Please allow 1-3cm deviation due to manual measurement.Material: 304 stainless steel, ABS _x000D_Size: As the picture shown_x000D_ColorStyle: As the picture shownPackage List:_x000D_chocie 1: 1 x Air Switch_x000D_choice 2: 1 x Air Switch, 1 x Hose