The gralab foot switches are not that common and dont pop up much. You can get a brand new foot pedal online or a music store that has a 1/4 inch output, a mono 1/4inch to 3.5mm plug adapter and you have a fully functional foot switch that can do start stop on press or double press to use on your machine. Get whatever size or color you want costs under $15. Much easier than looking for a used switch online.