Description Drop these little scrubbers into your bottle with soap and water, shake and watch them scrub away the mess. Sponge contains a ceramic ball insert to tough-clean those hard to reach spots. To clean sponges, use warm water and soap and let air dry. Reusable. Set of 4. Shake and scrub any bottle interior with ease. Material: PU Sponge, Ceramic. Size: 1.9 x dia. 3.6 cm
