To activate your Glowstick Glasses, crack the tubes & assemble them into the plastic connectors. Mix & match glow colors as you desire! NOTE: Product comes assorted colors, so if you order 1 piece of shades, no guarantee which color you'll get. Order 12 for a full pack & get 2 of each color. Glow Colors: Pink, Blue, Red, Green, Yellow, Orange No batteries required.