Specification:Material: Surlyn Resin + Synthetic Rubber + LEDBall color: whiteLED color: Random colorDiameter: approx 42.6mm / 1.68 inchesEach time bright 6-8 minTotal LED service life: approx. 48 hoursQuantity: 6 piecesPackage includes:6 pieces LED golf ball Easy To Find & Fun Night The glow in the dark golf balls are very bright, you will have a lot of fun when play them at night. Our LED golf balls are easy to find when playing golf at night, also suitable for Indoor and Outdoor. Long Lasting Light Up Ball Constantly On (not flashing)- The golf ball will stay lit for 8 minutes after every activation. It's quite enough time for your collecting them back, Less Balls Being lost The battery lasts 48hrs, That means you can expect to light up the ball more than 300 times Easy To Use No charger needed, no UV flashlight needed. Just hit the ball and it lights up on impact and creates a colorful arc as it flies through the air. Each pack has 6 balls each one its own color when lit. Red, Green, Blue, Yellow, Pink, and White. kids who are just learning to play. Give them a birthday, Christmas or thank you gift, let them know what you appreciate, and they will like it. And get a lot of fun from it.