Camel Wax Crayons (Extra Long), goes on and on. Its extra length gives your child the freedom to colour big pictures. This is the age when the child discovers the joy of colouring and in the process create something they have seen around them. So give them a freehand to explore their creativity. An interesting technique is illustrated below. Camel Wax Crayons are made of special non-toxic material which are child-safe and conform to international safety standard EN 71-3.