The Kitpas Crayons for Bath 3 Colours are specially formulated crayons designed to be used on wet surfaces such as bathroom tiles and baths. Not only are they hexagonal in shape for slippery hands but the crayons can also float in water for safekeeping and the paper that encases them is fully waterproof for extra durability. Even the packaging in which they come in are designed to be used on wet surfaces with an included suction cup and drainage hole. Kitpas Crayons are known to be buttery smooth, vividly coloured, water soluble, completely non-toxic and easy to clean. All you need to do is simply wipe over a few times with a sponge and rinse with water.