Material: silicone 
 Colors: yellow,green,gray,orange,blue,pink
 Package list:1pc dog muzzle
Size details:
 S: Mouth Circumference: 12cm/4.7", Neck Circumference (adjustable): 13cm - 27cm/4.7" - 10.6", Mouth Height: 4.5cm/1.7" (Approx.).
M: Mouth Circumference: 15cm/6.10", Neck Circumference (adjustable): 13cm - 33cm/5.1" - 12.9", Mouth Height: 6cm/2.3" (Approx.).
L: Mouth Circumference: 16cm/6.2", Neck Circumference (adjustable): 17cm - 35cm/6.6" - 13.7", Mouth Height: 7.5cm/2.9" (Approx.).
Q&A
 
1. Q: Why can't my dog drink water or stick out its tongue when use a duck muzzles?
 A: Please measure the size of the dog before purchasing to avoid inappropriate size
2. Q: On the day of use, the duck muzzles was bitten by the dog. Why is the quality very poor?
 A: This product combines breathability and softness with the use of silicone material. Do not let dogs bite this product as a toy to avoid damage
3. Q: What if the dog doesn't cooperate?
 A: Dogs who have just come into contact may be a bit rejected and need to have an adaptation period. When the dog gets used to it, it will improve