Specifications: Material: Surlyn Resin + Synthetic Rubber + LED Ball LED Color: Random Color Diameter: Approx. 42.6mm/1.68" 6-8 minutes per light Total LED Lifespan: Approx. 48 Hours Quantity: 6 Pieces Package Includes: 6 Pieces of LED The golf balls are easy to find and fun at night. The golf balls in the dark are very bright and they can be fun to play at night. Our LED golf balls are easy to find when golfing at night and are also suitable for indoor and outdoor use. Persistent Lighting Ball Continuous Lighting (No Flashing) - After each activation, the golf ball will remain lighted for 8 minutes. Plenty of time to collect them back, less lost balls Battery lasts 48 hours, which means you can expect to light up the balls over 300 times Easy to use No chargers, no UV flashlight required. Just hit the ball and it will light up on impact and create a colorful arc as it flies through the air. Each pack has 6 balls, each ball has its own color when lit, the color is random. Children just learning to play. Give them a birthday, Christmas or thank you gift and let them know what you appreciate and they'll love it. and have a lot of fun with it.