I have an extra 11 inch pro coil that I no longer need, the bottom was coated with some kind of epoxy at one time. Most of it has worn off but there are still traces of it on one side. It does not affect the performance of the coil, it just looks ugly as sin. It comes with two coil covers and the nut and bolt. I am asking $85 shipped PayPal friends and family or add 3% for regular PayPal.