Although it is made from resins such as polypropylene and polyethylene, it has a thick body to increase its strength and is fully functional, so it is non-toxic and safe for children to use. Recommended for ages 5 and up. Just press the switch to emit a gorgeous and beautiful fluorescent. You can wear it on your wrist, connect it together and make it a letter by side and it can be used as a bracelet, a pen light, a necklace, etc. Perfect for adding a festive touch to your party. Create a more happy and interesting atmosphere for your gathering. This flashing bracelet is very popular every year during summer festivals and events. Not only is it great for festivals, but it can also be used for a variety of occasions, such as live events, concerts, wedding after-parties, Christmas, fireworks, festivals, cultural festivals, childrens gatherings, birthday parties, camping, and more. Can be used as a bracelet, as a pen light or necklace. Wear it on your arms and legs. It glows in the dark, so it can also be used to prevent loss.