In-R-Form Plus Double-sided Fusible Foam Stabilizer. Made of soft, formable foam, In-R-Form Plus Double-sided Fusible Foam Stabilizer adds just the right amount of body to any tote bag, quilt, or accessory. This easy-to-stitch material is laminated on both sides to a fusible tricot. In-R-Form Plus Double-Sided Fusible Foam Stabilizer measures 58-inches wide and is sold by the yard.