Use Puffy Foam to add flair, 3-dimensions and excitement to computerized embroidery and machine-fed or free-motion satin-stitching. Puffy Foam is a high quality ethylene vinyl acetate film that is made specifically for use with Home Sewing Machines. When used on top of fabric, it perforates cleanly and makes stitching stand well above the fabric. Choose a Puffy Foam color similar to your thread color. Virtually no waste - even very small pieces can be used. Non-toxic, water-resistant, machine washable. Flammable, avoid overdrying in a hot dryer. Do not iron or dry clean. Package contains three 6"x9" pieces in a single color. Each sheet is 2mm thick.