The Roto Grip Hustle Earth bowling ball is a high-quality, 15lbs 10oz ten-pin bowling ball made from reactive resin. With a multicolor design and symmetrical core type, this ball is perfect for adult bowlers looking to improve their game. The ball is drilled and meets the standards set by the United States Bowling Congress (USBC), making it a reliable choice for serious bowling enthusiasts. Designed by the well-known brand Roto Grip, this bowling ball is a great option for anyone looking to enhance their performance on the bowling lanes. No bag.