This Track Arsenal Artillery USA Marbled Bowling Ball Drilled 15lbs is a high-performance ten-pin bowling ball that is perfect for any bowling enthusiast. The ball is designed with a multicolor pattern and is manufactured in the United States. It is a great addition to any bowling team's collection and is ideal for use in United States Bowling Congress (USBC) games. The ball is drilled and comes in a unit type of lb. It is perfect for those who want to add a touch of elegance to their bowling ball collection. The ball is made by Track, a renowned brand in the bowling industry. This product is perfect for anyone who loves bowling and wants to improve their game.