Awesome Micro Robot light - great gift for kids of all ages! Can be used as a cool nightlight or mini desk lamp! Heads can swivel 360º & can be popped off and on. Magnetized feet let these guys stick to metal surfaces & they come with an optional metal plate which has a sticky backing. Each includes a set of extra batteries. Please note that there is a tab that must be removed from the inside of the robot's head in order before the light will work. Sold in sets of 8 assorted - 3 black, 2 white, 1 each red, yellow, blue