BREATHABLE AND ADJUSTABLE: The dog muzzle is made of durable breathable mesh nylon, which allows your dog to breathe normally. It has an adjustable strap that allows you to adjust the strap so that it fits perfectly and remains stable. OVERALL PROTECTION: The 363 overall design can cover the dog's mouth all around. Triangular fixing, firmer and anti-fall. Effectively prevents biting, licking and biting. QUALITY AND SAFETY: Practical and reliable dog muzzle, made of environmentally friendly PVC, odorless, comfortable and durable design, soft edge fabric, harmless to skin. The ergonomic safety strap prevents the dog from removing it with his paws. MEASUREMENT: Measure the circumference of the dog's mouth and neck. We have different sizes for small, medium and large dogs. Please check the size chart and choose the size that suits you.