Material: The lenses are made of AC resin, glasses frame using EVA + PC material, durable, lightweight, comfortable, suitable for small dogs as daily photo or show props, performance wear. Provide the best eye protection against UV\/wind\/water\/debris. The flexible band adjustable elastic strap can fit your dog's size, and the chin strap design makes you never worry about falling off easily. The head and chin have a precision elastic strap for easy wearing. Wide Application: The dog glasses are suitable for daily use, photos, parties, weddings and vacations, dress up your dog to make your dog more eye-catching, chic and charming. Sponge pad inside: The sponge is padded around the lenses, the high-density sponge has an excellent breathable effect, perfectly relieving eye fatigue or glasses pressure, and the dog will not feel uncomfortable to long-term wear. Suitable for: Applicable head circumference: 15-20cm, applicable lower jaw circumference: 17-24cm. Weight 1.27oz. Suitable for Puppy, Yorkshire Terrier, Dachshund, Poodle, Shih Tzu, Miniature Schnauzer, Chihuahua, Pug, Pomeranian, Boston Terrier, Maltese, Teddy, Bichon Frize, Shorthair, Balinese, etc. (Please measure dog's head and jaw size before ordering dog sunglasses.)