Assorted LED Nerd Glasses come in assorted colors – 2 pieces of each color in every box of 12. To activate your Nerd Glasses, remove the pull tab & press the button on battery house located behind ear. Choose from 3 light functions: flash, blink & steady. Dimensions (WxL): 6 in. x 6 in. with sunglass arms open. Color Assortment: Blue, Red, Green, Pink, Red/White/Blue & Multicolor. NOTE: Cannot pick & choose which color you get if ordering small quanitity. Nerd Glasses come ready to use with 3 replaceable AG13 Batteries.