Ultra-Clean Washable Large Crayons are just the right size and strength for young colouring book users. Large size crayons are 11mm x 101mm and provide bright colours, smooth laydown, easy blending and non-flaky colouring. Crayola Ultra-Clean Washable Crayons easily wash off skin, clothing and from painted walls with just warm water and a sponge! Washability you can trust from the world's most washable crayon! Plus the crayons are double wrapped for extra strength, providing hours of creative fun.