Sizes - XS - width 1.5cm, neck circumference 25-31cm; M - width 2.5cm, neck circumference 39-49cm; Comfortable to Wear - The inside of the collar is lined with soft cushion for comfort, which protects your dog’s neck while being and not becoming a burden for dogs. Convenient Design - A ring is available for you to attach tags, pendants or accessories. Ideal for dog training, hiking, outdoor activities, etc. Material - Leather + Soft cushion, which leads to better resistance and makes the collar very light and the soft lining is comfortable for your pet, won’t become a burden for dogs. High Quality Dog Collar - Ideal for daily wear or other activities, give your pet an adorable and stylish look .