I have a NIB 15lb Zone Red Alert LTD. The ball has a 2-3 inch pin. Brunswick website states that the ball has a high RG and with the pearl Powerkoil 18 coverstock makes for explosive back-end reaction. For more information on this ball go to brunswickbowling.com and to the international line. I am looking for 16lb Brunswick, AMF, or possibly Columbia balls for trade. Or shoot me an offer and maybe we can work something out. Thank you for your time