Mid to Heavyweight Fusible Interfacing $3.50 Default Title - $3.50 Quantity This product is currently sold out. Please fill in the form below if you'd like to be notified when it becomes available. Pellon 931 Fusible mid to heavyweight is a nonwoven, fusible interfacing for medium to heavyweight fabrics. Measures 20" wide. Sold by the yard, orders in quantities larger than 1 will be cut in one continual piece- 100% Polyester- Sewing machine safe- Machine wash warm. Tumble dry low or dry clean.