The IMPROVED FREE-MOTION SLIDER lets your fabric slide with zero friction — makes machine quilting easy! TRY NEW TECHNIQUES such as thread painting, free-motion calligraphy, embroidery and monograms. The pink self-sticking bottom lays on your machine bed and stays in place.This 8'' x 11.5'' size is perfect for most home machines. Easily trimmed with scissors. Easy on, easy off!