The GreenGuard Grazing Muzzle is the most comfortable grazing muzzle on the market. It limits grass intake as much as a traditional bucket muzzle, but it is more comfortable, lighter, and cooler with a patented open design that allows for unrestricted breathing and drinking. The material is non-toxic, semi flexible and extremely durable. It doesnt absorb moisture. The muzzle comes with 4 breakaway straps to attach to a standard halter, or it can be attached to a GreenGuard Breakaway Halter which has an additional ring on the noseband for easy attachment, and a face strap for stablization. The GreenGuard Breakaway Halter is sold separately. These muzzles are designed to fit much larger than a traditional muzzle, so if your horse or pony is in between sizes, we recommend going with the larger size. Please see below for an example size chart.