A two piece golf ball has a core compression in the range of 77 PGA to 87 PGA, a core diameter in the range of about 1.532 inches to 1.548 inches, a cover hardness in the range of 66 to 72 Shore D, and a dimple pattern based on the geometry of a truncated octahedron. A ball having such characteristics...http://www.google.es/patents/US6709348?utm_source=gb-gplus-sharePatente US6709348 - Two piece distance golf ball
