To activate your Color Changing Magic Spiral Wand, press the button on the handle. Choose from 3 fun light functions: fast flash to create light trails, slower blink, or a cool random-speed color change. Item Dimensions: Height: 10.50 in. Width: 0.5 in. Lanyard hangs 5 in. long Colors: 1 Blue, 1 Jade, 1 Red Wand includes 3 replaceable AG13 Batteries.