Brighter and longer-lasting than our standard sticks, our 4 inch premium glow sticks are the ultimate party novelty. They can also be used as promotional gifts and safety lamps, as well as for glowsticking and even fishing. Each box contains an assortment of bright colors. Each stick has a diameter of 1.2 cm, glows once for 8-12 hours, and comes with a pre-attached hook and lanyard. Make the stick glow by snapping it and then shaking it. Sold by the box (25 glow sticks per box).