Easy Glide - Non-Stick PTFE Coated Fiberglass Pressing Sheet. Great protection for delicate fabrics. Wonderful protection for your machine embroidery projects. Excellent heat resistant and moisture resistant qualities. Highest Quality product at an astounding price! Also great under your machine quilting for easy, slick sliding. Just use blue tape to hold it down! Also great to use when you are appliqueing and want to protect your surface underneath.