This exciting ball provides the hitting power and flare the core offers and takes the Widow polyester line to the next level with full Black Widow images. Spare balls with a performance core have been popular for bowlers who want a harder-hitting spare ball or a ball for extremely dry lanes. Never before has a Viz-A-Ball featured a high-performance core, and there’s no better core or line to launch such a fantastic product. GAS MASK CORE The Black Widow Viz-A-Ball features the original Gas Mask core shape the bowling world knows and loves and is combined with a Carbon Fiber outer core for durability and power. This familiar core system is wrapped with Polyester and has a Crown Factory Polish finish. Hammer recommends Tough Scrub to keep your Black Widow Viz-A-Ball Performing its best!