Nanshan dog goggles are very suitable for small and medium-sized dogs, a small number of medium and large dogs, the middle of the nose can be bent to fit the dog''s face, suitable for all types of dogs with long and short noses. These dog sunglasses are made of high-quality PE frames and UV lenses, which are sturdy and durable, and are the first choice for protecting dog eyes. The inner frame cushion will make your puppy more comfortable to wear. The elastic bands on the head and chin can be adjusted at any time to adapt. In summer, it can be protected from ultraviolet rays, wind, dust, snow, wind when skiing, and walking in winter. Length: 6.3 inches, height: 1.77 inches, head elastic band adjustable 18.9 inches, chin elastic band adjustable 11.8 inches. (No stretch measurement). Please measure the size of your pet before ordering.