Features a strong symmetrical core designed for medium to light oil lane conditions. EZ USE, meaning it will perform perfectly on your typical house shot during normal league or tournament play. Core: Low RG Symmetric. Finish: 500 Siaair w/ Rough Buff. 12# RG 2. 60 Diff . 040. 13# RG 2. 58 Diff . 040. 14# RG 2. 50 Diff . 045. 15# RG 2. 48 Diff . 047. 16# RG 2. 46 Diff . 047. WWRD: 1/4/13.