This is the safest muzzle in the world & works so well, we had to patent its design. It allows your dog to breathe normally while at the same time restricting aggressive behavior. Whilst looking great, most importantly it feels great for your pet. Used by professional groomers, trainers & pet owners it is made from patented Dupont fabric which is exceptionally resistant to abrasions, punctures and tears. Designed to be almost impossible for pets to pull off, this is an easy wash and wear product.