This works pretty well. My son was chewing chunks of wood out of the side rails of his crib, so we bought this. There's not enough to cover both side rails, but he seems to only like to chew one side anyways. He hasn't chewed any more chunks of wood since putting this on and he seems content to chew on this instead. The only negative about this product is that the adhesive is not holding one of the ends down. I let it set for over 8 hours, so that's not the problem. It's only in one section, though. Fortunately, it isn't making it so my son's pulling it all the way off, so I'm overall pleased with this purchase.