Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not sure why so many negative reviews

I have two DaVinci cribs and both babies chew on the rails. I bought two of these to cover my twins' cribs rails (fronts and sides) and have had no issues. They were easy to cut to size and easy to apply. They stick well and the kids haven't been able to lift the edges. All in all, a good purchase.*update* I needed a third set and bought the thinner cover. I prefer the thinner ones. You don't need the wide ones since they babies are not going to be chewing on the outside of the crib rail, only the inside. They adhere well and my twins haven't been able to pull them off (yet). I wish I'd bought 3 sets of the thinner covers and saved a little money. Still haven't had issues with the kids lifting the edges or anything. Still happy with the purchase.