This muzzle is suitable for Rottweiler and large dog breeds with similar snouts. This muzzle is made out of BioThane, a material similar to leather. It's easy to clean, comfortable for your dog to wear, durable, weather-proof, waterproof and antimicrobial. Plastic reliable fittings help to adjust the muzzle and quickly put the muzzle on the dog. When to use this muzzle: safe walking, training, visiting public places, vet and groomer visits. For choosing of rights size it needs to take the next measurements on your dog: Snout Length (A) Distance from the tip of the nose to eye line, along the bridge of snout. Snout Circumference (B) One inch below eye base, with mouth closed and tape measure snug, wrap the tape measure around the snout. Size: A: 3.5" (90 mm) and B: 13,8" (350 mm) Your pets in our muzzles will look trendy and feel comfortable. If you are interested in the same model of muzzle made from leather, please visit this listing: https://seller-online.net/product/68429 SHIPPING: Shipping to the USA usually takes about 10-14 days. Shipping to European Union - 7-14 days, Shipping to Australia - 18-24 days. Please enter your name, coordinates, or other information at checkout. If you have any questions please do not hesitate to contact us.