A 3 piece set of clear plastic, "Stay Fresh" cereal box top covers. Designed to prevent premature food spoilage by keeping moisture out. The largest fits the top of a 1 lb. 4 oz. box, any 9 5/8" x 2 3/4" box. The mid size fits the top of a 15 oz. box, any 8 1/4" x 2 3/4" box. The smallest fits the top of a 10 oz. box, any 7 1/2" x 2 3/8" box. Dishwasher safe. The set comes boxed.