Pressure sensitive on both sides for a temporary hold to both the applique and background materials, pieces stay in place and are reposition able until fused with an iron. Once fused the bond is permanent and machine washable and dryable. Lite is made especially for sheer & light weight fabrics and regular is for use with heavier fabric paper card board wood and glass beads. Quickly create hems seams and applique. Easily apply lace trim and ribbon.