Description: There are vents on both sides of the pet sunglasses, which allow the air inside the glasses to circulate and prevent the generation of water vapor. It adopts the adjustable design of elastic webbing and can be adjusted to a suitable size. With transparent lenses, this pet sunglasses will give dogs a clearer and wider field of vision and protect their eyes. It is wind-proof, dust-proof and ultraviolet-proof, and is suitable for taking photos, traveling outdoors and so on. It is constructed of abs material. The head circumference is 20 to 30cm, the jaw size is 15 to 24cm, the frame length is 10cm and the height is 3.5cm. It is suitable for cats, dogs and other pets to wear. Item Name: Pet Glasses Material: ABS Features: UV Protection, Clear Vision, Air Hole Design, Adjustable Size Details: Head Circumference: 20cm-30cm/7.87"-11.81" (Approx.) Lower Jaw: 15cm-24cm/5.91"-9.45" (Approx.) Frame Length: 10cm/3.94" (Approx.) Height: 3.5cm/1.38" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Pet Glasses