This dog muzzle is designed for dogs with short and flat muzzles, which can effectively prevent dogs from indiscriminate biting, chewing and eating. Material: PVC mesh /nylon Size:XXS=19-27 XS=26-34 S=30-42 M=38 -52 L = 48 or more How to fit your dog’s muzzle: 1. Measure under your dog’s chin just behind the ears. 2.Please put your finger under the tape measure to ensure eChristmasgh space for your dog to be comfortable. < p>3.Fix the selected muzzle on your dog, test the fit by running your finger inside the strap.Your dog should be able to pant and move his tongue freely. < br/> About our services If you have any questions, please leave a message, we will reply to you within 24 hours and provide you with the best service. If you are satisfied with our products, please give a positive feedback, we will thank you for your encouragement. Attention: The size may be slightly inaccurate due to different batches of the products or different manual measurement; Color may be little different