The Hammer Cobalt Vibe Bowling Ball is a 13lb ten-pin bowling ball made of reactive resin coverstock in a blue color. It features a symmetrical core type with a differential of .040 and a polished finish. This ball is designed for medium-dry lane conditions and is approved by the United States Bowling Congress (USBC). The Hammer brand ensures quality and performance for bowling enthusiasts looking for a reliable and effective ball to enhance their game. Used for only a few games Last photo contains drilling measurements
