It is a bowling ball "Angular One" from EBONITE, which uses GB12.7 cover stock and is suitable for boilers looking for high performance. - Manufacturer: Ebonite - Model Name: Angular One - Cover Stock: GB12.7 - Manufacturer: U.S.A. Weight 14 pounds Thank you for seeing. There is a crack in the fingerhole as shown in the photo. It is 3 millimeters in the deepest place. Please buy a good deal with the above. Requirements and returns are accepted.