The Colour Spiral has a long (55cm) metallic spiral that holds 30 small wooden flowers (3 each of an assortment of colours). A wooden ball at each end keeps them in place.
By holding the rod vertically, the flowers cascade down the spiral creating a mesmerising rainbow effect. Reverse it as the last one reaches the bottom and watch it all over again in reverse. It is a source of constant pleasure and can allow children to learn to have fun playing by themselves.