Metalic multicolor slinky

Put this rainbow-coloured slinky at the top of the stairs and give it a little nudge. You will see the slinky make its way down the stairs on its own while as it creates a mesmerising rainbow effect. This classic children's toy is perfect for indoors and outdoors and is suited for children from three years of age and up. 

Also nice as an eye-catcher on your desk.