This is a 15 lb Brunswick Quantum Evo Pearl bowling ball. Weighs 15 lb 2 oz and has a 2.5" pin. It is single drill and does not have a thumbhole drilled. It's lightly used and in great condition. Wrapped in the Evolution pearl reactive coverstock, finished at 500/1000/1500 Siaair and polished with Crown Factory Compound, this piece increase overall hook potential in heavier oil and maintain that true "pearl reactive" performance when the lanes start to break down.