Automatically quilt as you sew to create a brilliant mug mat design using pre printed 80/20 wadding. Simply select and cut your fabrics then sew by number. Patterns are printed on 80/20 cotton/poly wadding Automatically quilt as you sew Use charm squares and pre cut 2.5 inch strips or your fabric stash The finished mug mat is approximately 8.5 x 10.5 inches. Fabric requirements for three mug mats: 7 assorted fat quarters or 7 assorted pre cut 2.5 inch strips Three 12 x 15 inch backing pieces.