?Standard Size?Diameter: 1.69". Weight: 45g. ?Vivid Colors?: This series of balls feature bright and vivid colors, pleasant visual impression. Great as gifts. 6 different colors: pink, white, green, orange, blue and red. ?Long Lasting Glow?:The light stays up for over 8 minutes after impact so that you have enough time to spot and retrieve the golf ball. The total life span of lighting time is around 40 hours. A golf ball can sustain more than 300 hits before it runs out of battery, more than life span of most golf balls before they get lost. ?3-Layer Soft Golf Ball?: Tested with streamlined 342 wind tunnel. Gives a super soft touch. The explosive three-layer speed promotes holding and rolling. Give the golfer a perfect swing state. The ball does not offer re-charge capability, can be used as a normal ball when it runs out of battery. ?Glow In The Dark?: This luminous golf balls are waterproof and fun to play in the dark. The LED golf balls will instantly light up when hit. A lot of fun to play them at night.