Product Features A pet helmet is the perfect accessory if you take your pet for a hike, horseback ride or drive. It not only enhances your pet's beauty but also protects your pet's head. Drop-resistant and smash-resistant shell. High-strength corrosion-resistant, drop-resistant. The quick-insertion buckle is easy to control and can be adjusted at will ABS material design. The helmet adopts a drop-resistant and anti-smashing shell, high strength, corrosion resistance, and anti-smashing. Internal design. There is a head pad on the top of the helmet, pets will not feel uncomfortable wearing it. Adjustable design. Using nylon straps and safety buckles, easy adjustment, safe and handsome to wear. Name:Pet Helmet Glasses Set. Color: Black. Size: S, M, L. Weight: S 55.4g ,M 80g ,L 110g. Suitable for: medium dogs, small dogs, cats. Material: ABS+frame cotton+polyester. S diameter: 9cm, head circumference 26cm. M diameter: 11cm, head circumference 32cm. L diameter: 14cm, head circumference 40cm.