When switched on, the jelly light slowly changes through its colour cycle. To pause on one colour, press down once on the soft squidgy top of the light. Press and hold down the top of the jelly light for three seconds to switch off. Can be powered using a plug power cable, or a USB cable, from your computer. Jelly is made from high gloss moulded plastic and is ideal for use in a dark area with the visually impaired. Ages 3 +. Size: 145mm x 111mmH.