Using this muzzle is easy. First, measure your dog's snout using the sizing guide to pick the right size. Slip the muzzle over your dog's nose and adjust the leather straps until it fits snugly but not too tight. You can remove the front grills if needed for better access. When it comes to maintenance, simply wipe it clean with a damp cloth. Avoid leaving it in extreme temperatures for long periods, even though it can withstand them. Always check the size recommendation as it's for average - sized adult dogs. If your dog is an odd size compared to others of the same breed, choose a different size to ensure a proper fit.