QUMY Dog Sunglasses Eye Wear Protection Waterproof Pet Goggles for Dogs about over 15 lbs Material: Plastic; For dogs about over 15 lbs, not for mini pets ! Head elastic band minimum 82mm/3.20", max 170mm/6.63". Neck around 95-190mm/3.71-7.41" between the pet can be worn. UV protection and prevention are key to your pet's healthy eyes. Shatterproof Lens. Anti-fog is available, protection against UV/wind/water/debris.