Bottle Cleaning Sponges Dolphin

Each dolphin measures 2.75-inches by 1.5-inch by 0.75-inches. Use in water bottles, baby bottles, wine carafes, and vases. Silicone balls inside the sponge help loosen residue on the sides and agitate the water to clean hard to reach areas. Sponge made from polyurethane, with two silicone balls inside. Air dry to help keep sanitized.