Product description Size: head circumference 22-38 (unstretched adjustable range) Lower jaw 18-30 (unstretched adjustable range) Color: black and white Material: TPE frame, nylon strap, EVA Package content: 1pet glasses 1Zipper packing box 1.Eye protection: The pet safety glasses are made of PVC to reduce UV intensity. Protect your pet's eyes from snow, UV rays, wind, water, dust, and fog. 2.Cool: These pet glasses have a cool look. She is definitely the choice for pets while walking, swimming, biking, or driving. Let your pet be cool with you. 3.Unique design: The frame is made of a unique plastic that is soft and elastic. It perfectly fits the shape of the dog's face without damaging the pet's skin. 4.Customizable design: the head and chin have elastic bands that can be adjusted and are not easy to fall off, safety glasses are packed in exquisite boxes and make a great birthday or Christmas present. 5.Protect eyesNever worry about your dog stick the head out the car window when you riding or driving outside because these sunglasses can prevent some little rock or something might hit the dog's eyes. Not only protect dogs' eyes from wind and sun in summer but also snowproof, anti-dust when skiing, running in winter.