NEW SEE PHOTOS!!! Medium size!!! INKZOO is a professional pet supplies company in the world. we were created with the mission of pet supplies for high-quality, easy-to-use, affordable products to everyone. As most INKZOO customers know, our products can provide a comfortable and safe environment for you and your pets. Features [Perfect fit]- Neck Girth: 11''-15.5'', Depth: 9.3''. Sufficient depth helps to overcome licking, itching, and scratching circulation How to Measure and Choose the appropriate size : 1. Measure Neck circumference ,Pls use a soft measuring tape wrap it tight enough around the base of your dog's neck ,where their collar fits comfortably 2. Measure the length from the base of the neck to the tip of their nose. let the pets have Wide view, free movement in safe condition .Doesn't interfere with your pet's ability to eat and drink. NOTE : 1.The cone size have adjustable range ,please carefully measure your pet's neck cricumference before purchasing, If you feel like your pet is in between sizes, choose the bigger one. NOTE: 2. When your pet wears this dog cone for the first time, he/she might be a little resistant to this new thing. We hope you can be patient and encourage him to get used to the cone.