Cashel Fly Masks have been rated #1 by both the Horseman's Journal and John Lyons! This particular model features longer ears designed to fit a mule. We love these masks. We personally prefer the ones with ears, because black flies and gnats are a problem here in Maine. Our horses accepted them amazingly well! Our masks are on their third season and still look great, which proves to us that they are the sturdiest and longest-lasting mask around. Our horses and their owners are very satisfied.