Use this HeatnBond EZ-SEAM tape to join batting pieces in under a minute. Just cut the tape to the correct size and connect the fabric pieces with the textured fusible tape side down, then use the iron on medium heat to fuse the pieces together for easy sewing. Details: Clear 1.5" x 15 yd. (3.81 cm x 13.7 m) roll size 12 rolls Soft and lightweight Permanent Won't gum up needles when sewn Polyester tricot interfacing No sew, iron-on application (iron sold separately) Machine wash on warm delicate cycle, tumble dry delicate cycle low heat or dry clean