Magically lights up to show ink colour Colours reveal on magical paper! Won't colour on skin, furniture or fabric Works with any Color Wonder marker Batteries not included. Requires 3 AA batteries. Magical, Mess Free Stamping! Color Wonder inks are clear but the Mess Free Light-Up Stamper magically knows what colour you're using! Press onto the purple ink pad and the handle lights up purple! Watch it change colours when using the green and orange pads too.