Helmet for Dogs, Cats and All Small Pets, Pet Accessory - Black-medium for dogs 13 - 20 lbs. Designed with your pet's safety and comfort from Prima Dog Protect pet's head from the sun, wind and irritant objects Excellent for the pet that requires protection from minor trauma Light weight, Padded inside and come in with adjustable chin strap Approx Size : LxWxH 5"x4.75"x2.5" Fit best for pets 13-20 lbs.