- Comfortable sheath-style cloth safety muzzle designed to fit average-snouted dogs. Stop biting and nipping- discourage barking. Perfect for trips to the groomer- vet- and other public excursions for aggressive- rambunctious- or anxious dogs An ideal amount of time wearing a sheath-style cloth muzzle is no longer than 20 minutes. Slide it on prior to entering a potentially stressful situation- and remove it once it has passed. If you require a more permanent muzzle- consider leather strap or metal basket muzzles. Never leave the muzzle on while your dog is unattended- and never use the muzzle in place of training to stop destructive chewing.