Material: The lens is made of AC resin, and the frame is made of EVA+PC material, which is durable, light and comfortable, suitable for small dogs to wear as daily photo props or for performances and performances. Maximum eye protection from UV/wind/water/debris. The flexible strap adjusts the elastic to fit your dog's size, and the chin strap is designed so you never have to worry about it coming off easily. Precise elastic webbing on the head and chin for easy wearing. Wide Application: Dog glasses are suitable for daily wear, photo shoots, parties, weddings and holidays, to dress up your dog and make it more eye-catching, chic and charming. Inside the sponge pad: The sponge pad is around the lens, the high-density sponge has a good ventilation effect, which perfectly relieves eye fatigue or the pressure of the glasses, and the dog will not feel uncomfortable wearing it for a long time. Fit: Applicable head circumference: 15-20cm, applicable jaw circumference: 17-24cm. Weight 1.27 oz. Suitable for Puppy, Yorkshire Terrier, Dachshund, Poodle, Shih Tzu, Miniature Schnauzer, Chihuahua, Pug, Pomeranian, Boston Terrier, Maltese, Teddy, Bichon Frise, Shorthair, Balinese etc. (Please measure the dog's head and chin size sunglasses before ordering the dog.)