Easy to use: Designed with a rubber band, easy attachment on any finger, pen or other objects. Fits children & adults. Press on / off switch to turn on the light, easy to use.The LED finger rings can be used for all kinds of creative parties and activities, are great for Graduation party, Mardi Gras party, Halloween, Christmas, party, concerts, weddings, birthday or other Halloween festivals.Colorful LED finger lights souvenir finger ring, four different colors blue, green, white and red.The finger lights can last for many hours and each finger lamp has 3 button batteries. They bring you a colorful world at the celebration.Package included: 50 pcs finger lights (each color 25 pieces). If you have any questions or problems with the finger lamps, please do not hesitate to contact us