Patented, heat-activated adhesive binds almost instantly to cups, ensuring slip-free use. Corrugated construction provides superior heat insulation properties, eliminating the potential for hot-cup drops. Easy-to-unfold, easy-to-use design helps keep beverage lines moving. Material(s): Kraft; Color(s): Brown; Quantity: 500; Fits: Fits 10, 12 16, 20 oz cups.