The Storm Phaze V 15 lbs X-out Bowling Ball is a high-performance, ten-pin bowling ball made of reactive resin coverstock with a symmetrical core. It is undrilled and polished to achieve optimal performance on medium-heavy lane conditions. This multicolor ball, designed by Storm, is perfect for bowling enthusiasts looking for a reliable and durable ball to enhance their game. Made in the United States, this bowling ball is sure to help players improve their accuracy and scoring in the sport of bowling.