Feaure: New and high quality A humane and way to work with strong, forceful dogs Helps stop biting, barking, and chewing Recommended by handlers, trainers, and pet care professionals Durable leather for strength Snout strip for dogs comfort Fully adjustable strap with quick-release buckle Do not leave dog unattended while wearing this muzzle Material: nylon&Plastic Color: as the pic Size: Basket Muzzle. Size 1:XX-Small Snout Circumference:7" Top Measurement:1.8 Bottom Measurement:2.63 Size 2:X-Small Snout Circumference:8" Top Measurement:1.96 Bottom Measurement:2.87 Size 3:Small Snout Circumference:9" Top Measurement:2.16 Bottom Measurement:3.54 Size 4:Medium Snout Circumference:10" Top Measurement:2.56 Bottom Measurement:4 Size 5:Large Snout Circumference:12"(11.81 in reality) Top Measurement:2.95 Bottom Measurement:4.72 Size 6:X-Large Snout Circumference:13"(14.39 in reality) Top Measurement:3.15 Bottom Measurement:5.51 Size 7:XX-Large Snout Circumference:15" Top Measurement:3.35 Bottom Measurement:5.71 This below list is for reference only,pls choose the correct size according to the actual size of your dog. Size 1 suit for:Super mini dogpuppy Size 2 suit for: ChihuahuaPomeranian Size 3 suit for: Miniature SchnauzerMiniature Poodle Size 4 suit for: Bichon FriseDachshund Size 5 suit for: CokerRural dog Size 6 suit for: Golden retrieverSiberian Husky Size 7 suit for: Doberman PinscherTibetan Mastiff Package included: 1 x Nylon Basket Cage Adjustable Pet Dog Muzzle IMPORTANT: Measure your dogs snout midway between the tip of the nose and eyes and ADD 1 inch for Small and Medium dogs and ADD 2 inches for Large dogs. This measurement becomes the snout size to use when ordering this Basket Muzzle. If you are in-between sizes, we suggest ordering the larger size.