Bowlerstore Products Candlepin Urethane Pro-Line Bowling Ball- Lime Green/White/Navy 2nd generation EPCO of Reactive Urethane This is sold as a 4 ball set Todays technology designed for higher reaction Unique colors and style Engraved EPCO Urethane Pro-Line logo We make it simple Some customers want to purchase just one or two and some customers want to purchase a 4 ball set