Check the listing for details. Pet Duck Bill Shaped Adjustable Dog Muzzle Anti-Bite. Condition: New, Made in China. Listed at 4.99 USD. The Pet Duck Bill Shaped Adjustable Dog Muzzle Anti-Bite is a silicone muzzle designed specifically for small dogs. Made in China, this unique muzzle is shaped like a duck bill, providing a secure and comfortable fit for your furry companion. The adjustable design ensures a customizable fit, making it ideal for pet training and behavior management. The durable silicone material also ensures long-lasting quality for your pet's safety and well-being.