The size of the image is 15cm (length) x 4.5cm (width), the size of the lens is 5cm (length) x 3.5cm (width). Adjustable head and chini range. The lens is high quality polycarbonate, capable of filtering and reducing UV, UV400, infrared and visible radiation intensity. Protect the eyes of your animal from UV rays, wind, dust and fog. The sponge is padded around lentils, the high density sponge is very breathable and thermal performance relieve Ocular fatigue or pressure on the shaft and dog is usually not uncomfortable. Dog glasses are good protection for your pet. It’s fashionable and adorable when bringing your pet to walk, swim, drive and so on. For small or medium dogs, but not for big dogs. NOTE: Please measure the size of your pet before ordering. Please allow an error measure of 1 to 3 cm due to different measurement methods. Color: Black Specification: Color: black Material: EVA + PC + Nylon strap Dimensions: 15 * 4.5 cm / 5.9 * 1.8 inches (L * W) Weight: 70 g Headband: 20-40