Are you looking for a quick and easy way to clean your re-usable water bottles and containers? Some bottle shapes can cause a build up of residue on the inside, making them hard to clean, even with a special brush. But these little Scrubbies should do the trick! Drop two Scrubbies into your bottle with soap and water, shake and watch them scrub away the mess. The clever design has a ceramic ball inside each scrubbie sponge, so it can touch-clean those hard to reach spots. And what's more, the Scrubbies are re-usable. Use warm water and soap to wash them, and let them air dry.  Since 1992 Kikkerland Design has established itself as one of the top companies in the world offering unique, inspiring, well-designed products. How does it come? 4 in a pack. Pack size 16.5 x 11.5 cm. Each Scrubbie is 3.5 cm approx diameter.