. NEW Ruler Work Glider creates a slick sewing surface. Polyester mat with micro-suction. technology secures to Table and sewing machine 12” x 20” removable polyester, round hole pre-cut cover feed dogs. Slick topside allows for easy fabric glide. Micro-suction technology secures to sewing machine and/or extension table. Can be trimmed down with scissors. Clean with warm water and air dry to revive. Ideal for Free Motion Quilting. Tips and Trouble Shooting for Glider Use:. The glider has a clear back that you must peel off. It is intended to stick to smooth surfaces, like our Sew Steady Acrylic Tables and Inserts. It will need to be taped down to textured surfaces, such as a wood cabinet top. If it is still not securing to acrylic or smooth surface, and you have rinsed with warm water, you might try using a lint roller to help revive the micro-suction technology