Convenient:Our dog muzzles set includes 7 different sizes, which means that it can be suited for most dog sizes and dog ages. They are very easy to fit and use with a fully adjustable strap and buckle as well. Material: the Soft plastic material,It is durable and not easy to damage, and it has a long service. Function: many owners of dogs have the trouble that their love pets like to chew the food on the ground when they take them to the street, which is bad for their health, but this product can let them cannot open their mouth to eat to solve the problem. effect: the muzzle can keep dogs quiet to give you and your neighborhood a rest environment, and you can feel safe to take them for a walk. It's great to meet your different needs with the multiple choices and solving your problem easily. Anyway, if you have no idea about your dog's mouth size, this product will help you.