| http://www.w3.org/ns/prov#value | - Another aspect of the present invention is a golf ball having a polybutadiene inner core with a diameter of between about 1.35-1.7 inches, a thermoplastic boundary or mantle layer having a wall thickness of between about 0.02-0.09 inches, and a polyurethane cover having a wall thickness of between about 0.02-0.09 inches.
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