FACIAL VISIBILTY: The transparent design allows humans and other dogs to read the facial expressions of the dog wearing the muzzle. This allows other dogs, trainers, vets, groomers and the owner to read social cues and interpret how the dog is feeling and may react SHAPE FOR A COMFORTABLE CUSTOM FIT: Like a mouthguard, the Baskerville INVISA Muzzle can be heat-shaped using warm water to fit different dog nose shapes. See fitting guide for more info and to find the best size for your dog. ANTI-SCAVENGING GUARD: This muzzle is specially designed with an additional guard insert to prevent scavenging of food and wildlife IDEAL FOR REACTIVE DOGS: you can train, and reward treat your dog if they are reactive around other dogs or new people (remove additional guard insert) STRONG & SAFE: Built with strong Thermo Plastic Rubber (TPR) the INVISA Muzzle is safe to prevent bites. Extra secure with lockable neck strap clip and V-shaped cheek straps.