This product is a set of 6 glow in the dark LED light up golf balls that come in 6 different colors. Each golf ball is made of durable rubber and synthetic resin material, same hardness and hitting feel as regular golf balls. It glows bright after activation, perfect for night golf games, allowing you to continue playing golf even after sunset. It is a ideal gift set for men, women, kids who love golf, also suitable for outdoor night practice and fun golf activities at night.