I was wondering if the coil covers that comes on the Cibola's are glued on at the factory. I tried to get mine off to clean the inside of it and it cracked & I had to get a new one.And these are $12.00 plus shipping. And the new one was almost as hard to put on as the old one was to get off. Although I love my Cibola I was surprised to see that the coil wasn't smooth on the bottom. It is like it has a ridge on the bottom of the coil here and there. Kind of like something that should of been sanded smooth but wasn't. Maybe the covers aren't meant to come off, I don't know. But on all my other detectors I ever had I always took them off to clean them with no problems. Thanks! Steve.