Keersi Cool Pet Dog Puppy Goggles UV Sunglasses Sun Glasses Eye Wear Protection 4 Color Adjustable double strap for snug fit Fits: adjustable back strap 8-17cm, adjustable chin strap 9-19cm Fun, yet functional design ,total protection from UV, wind, water, & debris Wider nose bridge, deeper lens cup, & sturdier frames than other brands Suitable for: dog,all types of working dog,police dog, search and rescue dogs, quarantine dogs , guard dogs,