The USED Track Stealth Mode Hybrid Bowling Ball is a high-performance 15lb ten-pin bowling ball designed for medium-heavy lane conditions. With a symmetrical core and hybrid reactive coverstock, this ball offers a balanced and predictable performance on the bowling lane. The Stealth Mode Hybrid model features a polished finish and is plugged with a single drill for added customization. Made in the United States by the Track brand, this ball is suitable for competitive bowling and is approved by the United States Bowling Congress (USBC) for use in sanctioned matches.