Our LED Glow Cup is a great alternative to chemically lit beverage cups. They capture the look of the chemical glow cup but are almost infinitely reusable. In fact, we are able to offer these LED Glow Cups at a price that is cheaper than the single use, chemically activated glow cups available on the market. They are easier to use, requiring the flip of a switch rather than the use of an activation device & are environmentally conscious. Get the look of a chemical glow without the cost or hassle. One set of batteries lasts twelve hours & are easily replaceable AG13 batteries, ensuring that even the original set of batteries lasts longer than the chemical glow would on the single use cup. Our LED Glow Cup is washable (not in the dishwasher though!) & can be used time & time again. Product Features Available in Blue, Green or Red Safe & Resuable Not Dishwasher Safe but Washable 12 hour battery life on AG13 batteries Less Expensive than Single Use Chemical-based Glow Cups