Quilt as You Go Pre-Printed Batting with fusible back. Sew and quilt individual blocks then join together for a finished quilt. Fusible back side of batting to secure quilt back. Easy piece-by-number block construction on the front. Block is automatically quilted as you sew. Additional quilting can be added to each block before joining. Includes six 12" finished blocks for a 24" x 36" quilt. 80% cotton, 20% polyester batting.