This stitch guide from Clover sticks to your sewing machine platform with an adhesive gel that is fixed to the guide surface. The guides can help you keep a straight stitch when working with complicated folded fabrics or to keep a proper shape when stitching inner and outer curves. Details: Green 2 5/8" x 2 3/8" x 1" (6.67cm x 6.03cm x 2.54cm) Reusable Includes clear plastic grid that doubles as holder for the guides Resin and plastic If surface becomes dirty, rinse with tap water