Columbia 300 Command Bowling Ball is excited to introduce a new series to the high-end line with the Command. The Commands a strong asymmetric pearl, which together creates excellent mid-lane and continuation. The core and cover are all-new and have been developed to produce more motion from a shiny pearl than seen before in the Columbia 300 line. Take command of the lanes with the Columbia 300 Command high-performance bowling ball. This asymmetric pearl bowling ball introduces the Movement core and Angular Reaction System coverstock which offer excellent mid-lane reaction and continuation. This core and coverstock were created to offer increased motion from a glossy bowling ball. Specifications: Color: Smoke/Yellow/SilverAll colors do vary somewhat from the picture shown Core: Movement (14-16#) Coverstock: A. R. S. (Angular Reaction System) Finish: 500 Siaair/Crown Factory Compound Reaction: Skid/Flip RG: 2.513 (15# ball) Differential: 0.053 (15# ball) Recommended Lane Condition: Medium to Heavy oil