Feature: -ON/OFF Button& Long Life Battery -The glow sticks party pack is equipped with batteries, also have an On/Off switch for saving battery life. -The led sticks can last 5-8 hours.  -These colorful light up foam sticks are a popular choice for birthday parties, Concert, Weddings, Festivals, glow party,nightlife, raves,Christmas Celebrations, Bars, and any other event. Specification: Weight:25g/pcs Size:48*4cm/pcs (18*1.58inch/pc) Every stick powred by 2 Button Cell Batteries( AG13*1, AG10*2 ) Usage: 1.Pull insulation strip out 2.Press the power switch Package Included: 100 PCS LED Light up Foam Sticks 【Premium Material】The foam glow sticks are made of eco-friendly foam and pearl sponge, which is harmless to children and meets your expectations for special occasions. 【Size】Come in a pack of 100pcs glow foam sticks, they are about 18.9 inches long and 1.6 inches in diameter.With 3 color: green, red, blue, the foam glow sticks bulk will bring tons of joy to all of us! 【Replaceable Batteries and Protection】The LED foam glow sticks have a high light output of 300mAh, each contains 3 replaceable batteries, which can last for 5-8 hours. Each product comes with an insulated plastic plate to protect the battery before use or storage. 【Multiple Lighting Modes】Just press the power button of the foam led sticks to switch between the different light modes. Includes quick flashing, slow flashing, alternative flashing. 【Widely Used】Suitable for fan signings, concerts, parties, weddings, Christmas, Halloween, birthday parties, bars, pubs, sporting events, carnivals, festivals, etc. It is the best choice for any night event and it's suitable for adults and children