Set the lanes on fire with this super sleek Black Widow Pearl by Hammer Bowling Balls. First she seduces with her looks, and then she kills with her power. Black and red in color, the Black Widow Pearl features a pearlized version of the Violent reactive coverstock and is made of reaactive resin. With its 4000 Grit Abralon polished factory finish, it not only looks sharp, it feels great, too! Featuring the popular High Mass Bias Gas Mask core with flip block, this high performance, 15 pound bowling ball will give even the most novice bowler excellent length and backend. Although this particular ball is ideal for medium-heavy lane conditions, it will get more length and become more aggressive on medium oil. It has a high flare potential, and a very low-high break point.