As bowling balls are the exclusive product of Columbia, all research and development goes into the improvement of the striking sphere. Therefore, the company has gone all out for researching the physical properties which make for what the bowling fraternity calls "impact" and "mixing" of the pins. More recently such terms as radius of gyration, coefficient of restitution and amount of flare are factored into the manufacturing process. Research into every aspect of making a better ball for the bowler goes on every day at Columbia. Take a look at the items below to find out for yourself why Columbia Bowling Balls are among the best in the world.