IciColor lets you play and colour with any angle. In addition, if you place the paper on top of any texture such as leaves, wood or sellotape, you can enjoy tracing out unexpected shapes and effects allowing one to heighten their imagination. The form changes after each use, thus it can also be piled up like dominos or stack of stones. The use and method of playing will match the growth of a child. Dimensions: each crayon is irregular in size, weighs 15~20g Draw, colour, or trace! These stone crayons will enhance creativity! IciColor (Stone colour) is a familiar shape of nature for children. It allows freedom to draw, colour or simply enjoying rubbing and tracing over textured surfaces. The form continues to change while it is being used. It's a fun way to play and colour! iciColor is made of a safe material hence it is non-toxic. It is easy to hold even for small hands. It's not easy to break even with a bit of force. It will not stain clothes easily, and even if it did, it can be washed off with ease. It can be stacked up like a stone sculpture. Putting them back into the case will allow children to practise tidying up.