Product Content:It contains three sets of candy glow sticks and 12 glow sticks with joints. No Batteries Request:It is quickly and easy to use.You just bend and shake glow sticks.It light up 10 hours after activated. Safe and Premium:Glow sticks are sturdy that no kids will break it if they haven't tool.It will emit colorful light in the night embellished children's happiness Applies to:The advantage of glow sticks are portable and convenient to use.So you can use them on any events such as concerts,carnivals, disco parties, camping trips, and weddings. Good Present For Students:Glow sticks make the atmosphere warm and romantic when students get together. If you don't know how to set up a party, why not try glow sticks