Bolt Hole Circle: 11.7. Voice Coil Diameter: 1.35.You will be issued a Return Authorization Number. In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product. The item "JL AUDIO 12W1V3-2 SUB 12 SINGLE 2 OHM 600W CLEAN BASS CAR SUBWOOFER SPEAKER NEW" is in sale since Thursday, January 26, 2017. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "woofersetc_outlet" and is located in Los Angeles, California. This item can be shipped worldwide.