Adjustable and Secure: The dog muzzle is adjustable, and the nylon neck strap is easy to wear and install. A plastic buckle on the neck strap helps prevent the muzzle from falling off. Comfortable and Breathable: The muzzle features breathable mesh material that keeps dogs comfortable. The area above the nose is made with soft material for added comfort. Nylon and breathable mesh reduce the weight burden on pets. Protection: This muzzle helps prevent dogs from biting, eating unsafe items, and potentially harming others. Multiple Sizes: Available in 4 sizes, this muzzle can be adjusted to fit all dog breeds, including small and large breeds. If your dog's snout circumference falls between two sizes, choose the smaller size for a secure fit. Note: Most dogs may need time to adjust to wearing a muzzle. Please introduce it gradually and with patience. Quality Guarantee: Backed by a 24-month quality guarantee. If you are not satisfied or the product is damaged under normal use, a full refund is available.