Crayon Rocks are definitely a favourite with children and adults alike, and this bulk option means you can allow a group or class to have the pleasure of drawing with them. They are made from soy wax, and the colours are vibrant and rich. They are shaped in such a way to encourage little fingers to strengthen their tripod muscles. Although I'm a strong believer in not forcing particlar pencil grasps onto children, I advocate strengthening their fingers. I love how children naturally use their fingertips to grasp Crayon Rocks, and this helps them develop their pencil control, finger awareness and strength... but to them they are downright fun and beautiful to use!