Sew Slip-Multipurpose Quilting Sheet II: Rectangular Hole. SewSlip has a non-stick top surface which is bonded to a cured silicone. The tacky back holds the SewSlip to your machine's surface. Simply remove the protective brown sheet, position the hole under your machine needle and sew! It is that simple. This package contains one 18x12 inch quilting sheet. Made in USA.