MaterialThis Breathable Basket Muzzle is made of TPR and reflective nylon tape, which is sturdy and durable. BreathableSoft muzzle allows plenty air, which is necessary for your pets comfort. ReliableComes with adjusting straps to make sure it stays firmly in place and won't fall off easily. UsagePet muzzle gives all-around mouth protection, does not discomfort the dog's mouth and hurt to the skin. Measure Before BuyingMeasure your dog's snout circumference and snout length and allow extra room your dog to pant and breathe. Size Chart: Reflective 1mouth circumference 14 cm-2 0cm/5 .5 1inch-7.87inch head circumference 3 0cmx4 0cm/11.81inchx15 .75 inch 2 2 1cmx2 3 cm/8.2 7inchx9.06 inch3 4 cm-4 8cm/13 .3 9inch-18.90inch 3 2 3 cm-2 6 cm/9.06 inch-10.2 4 inch3 9cm-5 1cm/15 .3 5 inch-2 0.08inch4 2 5 cm-2 8cm/9.84 inch-11.02 inch4 5 cm-5 9cm/17.72 inch-2 3 .2 3 inch5 2 8cm-3 1cm/11.02 inch-12 .2 0inch4 7cm-6 1cm/18.5 0inch-2 4 .02 inch6 3 2 cm-3 6 cm/12 .6 0inch-14 .17inch5 1cm-72 cm/2 0.08inch-2 8.3 5 inch Nylon 6 cm/2 .3 6 inch, 7cm/2 .76 inch14 cm-2 0cm/5 .5 1inch-7.87inch3 0cmx4 0cm/11.81inchx15 .75 inch7.5 cm/2 .95 inch, 8.5 cm/3 .3 5 inch2 1cmx2 3 cm/8.2 7inchx9.06 inch3 4 cm-4 8cm/13 .3 9inch-18.90inch 8.5 cm/3 .3 5 inch, 9.5 cm/3 .74 inch2 3 cm-2 6 cm/9.06 inch-10.2 4 inch3 9cm-5 1cm/15 .3 5 inch-2 0.08inch8.5 cm/3 .3 5 inch, 9.5 cm/3 .74 inch2 5 cm-2 8cm/9.84 inch-11.02 inch4 5 cm-5 9cm/17.72 inch-2 3 .2 3 inch9.5 cm/3 .74 inch, 10.5 cm/4 .13 inch2 8cm-3 1cm/11.02 inch-12 .2 0inch4 7cm-6 1cm/18.5 0inch-2 4 .02 inch10.5 cm/4 .13 inch, 12 cm/4 .72 inch3 2 cm-3 6 cm/12 .6 0inch-14 .17inch5 1cm-72 cm/2 0.08inch-2 8.3 5 inch Package Includes: 1 Muzzle for Dog Note: Please allow slightly errors due to manual measurement and different monitors.