I got some nice shells off Ebay for my hermies, unfortunately these shells are too small. :-( Oops. 2, possibly 3 nice Turbo Petholatus shells, approx. 2 inches wide, with approx 1 inch openings. I put a golf ball in one pic for scale. I say "possibly 3" because I'm waiting to see if Arthur wants one, but I'll probably throw in the third as well. It is about the same size as the other two. I will mail these shells for free anywhere in the US, although I would love to have a decent shell with about a 1.5 inch O-shaped opening if you have an extra lying around you want to trade. PM me.