Set of 6 LED light golf balls, flashing 6-8 mins after a strike, then it will turn off automatically The cumulative LED life is about 48 hours Double layer golf tournament ball, made of high quality synthetic rubber and surlyn resin Official Size 42.6mm/1.68inch; Weight 45g Bring unlimited fun during playing golf; suitable for night golfing, outdoor and indoor Great gift for golfer, it also can be as a home decor or toy ball Specification: Material: Surlyn Resin + Synthetic Rubber + LED Ball Color: White LED Color: White + Rose Red + Green + Yellow + Red + Blue Diameter: approx. 42.6mm / 1.68inch Every Time Bright 6-8 mins Total LED Life: approx. 48 hrs Quantity: 6 Pieces Package Includes: 6 Pieces LED Golf Ball Note: Color maybe slightly different due to different monitor. Thanks !