The Power of the Popular No. 1 "Curve Type" Urethane Ball!! In today's bowling environment, where the importance of urethane balls is increasing, this powerful weapon has been created by combining a strong core with the characteristics of a urethane cover, which is originally less susceptible to oil, to overcome thick oil and neutralize tough conditions. It's finished as a ball that can be used in the heaviest conditions, not only for high-rev bowlers but also for strokers. This ball, destined to change the concept of urethane balls and become a game-changer in ball selection, is "The One Black Urethane." My Impressions After Throwing It↓ It curves incredibly well (*^^*) It's easy to handle, and the pin action is also amazing. I have another urethane ball, so I've decided to let this one go, which I've cherished. - Model Name: THE ONE BLACK URETHAN - Brand: EBONITE - Number of Holes: 3 - Plug: None - Number of Games Thrown: About 10G - USBC Certified: Yes The grip will be removed before shipping.