Play well into the night with this pack of six led light up golf balls, that comply with competition regulation sizing, so will have a familiar velocity feel to standard balls. The pack includes one each of a white, red, green, blue, pink, and yellow ball. The balls light with a solid static light, making them easier to spot than some of the flashing led golf balls, that also only tend to stay lit for 5 7 minutes, once struck these balls will stay lit for 10 minutes, giving plenty of time to see and locate. They don't restart their 10 minute cycle on subsequent strikes, so keep your eye on the ball with your timings! The balls are waterproof and very durable, and have a battery life of around 50 hours, or 300 shots. These balls make the perfect gift for golf enthusiasts whether amateur or professional for dark night play, and are very popular for organised events such as charity golf matches. They can also be useful for daytime play, choose to play the red ball and watch it stand out in the rough! Regulation size and weight 45g 45mm diameter6 led balls included1 each of white, red, green, blue, pink, and yellowlight with static light for 10 minutes from first strike