• Train your dog to use the muzzle before prolonged use. Refer to the training video for more details. • Measure your dog's mouth and neck circumference to choose the right size. Check the second image for more information. • Available in different sizes to fit various breeds, ensuring a perfect fit for your puppy. • Made with high-quality and durable nylon, ideal for daily use and comfortable for your dog. • Perfect for aggressive and energetic puppies, useful during training or daily walks. • Placement instructions: Place the muzzle loop over the dog's nose, secure the neck strap, and adjust without tightening too much.