[Large - Neck Size 18"-22" Width 1". Please measure your dog’s neck girth with a soft measuring tape to choose a correct size. This collar can be used as a martingale collar for correcting bad behaviors and obedience training. Martingale dog collar is made of high quality thick yet soft nylon. Reflection is added for extra pet safety. Perfect for dog daily use. Training dog collars are available in 5 vibrant colors: black blue red green and pink. It is a great combination of style quality and comfort. We are foucs our mind on pet supplies and all of our materials are carefully selected strictly inspected in the production process. If you have any questions about the product please feel free to contact us and we will help you within 24 hours.]