This Clover 9584 6-in-1 Stick 'n Stich Guide is your go-to seam guide for perfect stitching. The guides stick to your sewing machine surface with a repositionable, reusable adhesive jell that is permanantly fixed to the guide surface. If the jell becomes dirty or full of lint, simply rinse off with tap water and you are good to go again and again. Set includes a clear plastic grid measure to assist in guide placement that also serves as a holder when the guides are not in use.