Features:

A great novelty gift for any golfer. After being hit these balls will strobe for about 5-8 minutes. Can't miss these on the golf course
This makes finding your ball very easy at night or twilight
The battery inside will last about 45 hours total, meaning you can strike the ball about 500 times
Use for night golfing, day golfing, or to add some fun to a round of golf
Color changing

Mode: Slow flash to fast flash
Diameter: Approx. 4.3cm/ 1.69"