Soft and comfortable-made of FDA food silicone, non-toxic, light weight and not easy to deform. Duckbill dog muzzle, perfectly fits the dogs nose and will not harm the dogs skin Safe and adjustable-with adjustable shoulder straps and Velcro to prevent the muzzle from falling off, allowing you to quickly adjust the size to suit your dog Behavior modification-it can prevent your dog from some behaviors, such as biting, barking, licking wounds and eating garbage, but your dog will still pant. Muzzle for small dogs-cute and interesting duckbill-shaped dog muzzle,L (snout circumference 17cm, 19- 35cm) Please measure before buying: it is very important to find a suitable size. If your dog's size is at the end of the range shown, you should order the next size, not suitable for short snout dog Size Name:L | Colour Name:Yellow Product Name: Duckbill Dog Mouth Cover Material: Silicone Color: yellow, blue, pink, brown Neckband adjustment range: 17-35cm Size:L (snout circumference 17cm) How to guide a dog to wear a muzzle 1. Take out the muzzle for him to sniff, get familiar with the muzzle and fight against the psychology of the firefighter, so as to reduce the fear of strange things. 2. Put it on for the dog for the first time, take it off after a few seconds, take it off immediately and give it a reward. 3. Repeat the above actions, each time longer than the last time, let the dog slowly adapt. 4. Give praise and rewards after wearing it. L: snout cirumference17cm; neck circumference 19-35cm; Recommended dog weight 8.5-13kg