Stockmar Wax Block Crayons Tin Case - 16 AssortedStockmar Wax Blocks, made from the same materials and available in identical colors to the stick crayons, have outstanding drawing properties and appeal to the senses. Their size and flat shape mean they sit well in the hand and are specially suited for small children. Children can draw colorful areas easily, and arrive at interesting effects. For example by dragging the long edge of the block in a wave like fashion across the paper. From the very