Features: Comes with two adjustable shoulder straps to ensure to fit over the dog's mouth. The unique design provides your dog with cozy fit comfort. Handmade Nylon dog mouth is skin friendly. Can prevent your pet from eating unwanted food/snacks from strangers- or on walks. This safe guard for large and medium sized dogs prevents them from biting, providing for protection for your pet and others. Package Includes: 1x Dog Mouth Guard Specifications: Material: Nylon Size: S/for M/L/XL S-Approx.Mouth Circumference: 12x25cm/4.72x9.84in, Neck Circumference:11-29cm/4.33-11.41in; M-Approx.Mouth Circumference:15x28cm/5.91x11.02in, Neck Circumference:13-33cm/5.12-12.99in; L-Approx.Mouth Circumference: 18x30cm/7.09x11.81in, Neck Circumference:16-36cm/6.30-14.17in; XL-Approx.Mouth Circumference: 23x34cm/9.06x13.39in, Neck Circumference:20-46cm/7.87-18.11in. Color: Multicolor, Orange, Dark-blue, Red(optional) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.