My kids love these glowsticks. I've used them to get my toddler to stay in bed & fall asleep. I hung a few on 3 little hooks on his wall for him to look at. He loved the glowy-ness. I toss about 20 of them at a time on the floor for lights-out pick-up games in the living room at sleepovers. Great fun to toddlers! They get so competitive, grabbing as many as they can, & waiting to hear who got the most. They even try to help count! I have found (& it sounds silly) that if I "crack" 15-20 all at once and hold them together for a minute, they all glow brighter. I also use them when we go camping as safe, soft lighting so my little ones aren't so scared in the dark. Can't leave a lantern burning all night, & flashlight batteries cost a lot more.