Model Number: 00002 Brand Name: Z&M Key Specifications/Special Features: Soft & sturdy -genuine leather dog collar ,smooth surface with alloy buckle, black and brown colors available, soft, heavy duty and skin-friendly for medium and large pets daily useHeavy duty military appearance - a chromed heavy d-ring placed for leash attaching when out door for walking training and traveling. Labrador, pit bull, golden retriever, chihuahua, alaskan malamuteAccompanied by the growth of dogs - 1.2 inch (3cm )wide, neck for 16-21 inches(40-53cm), 24 inches(60cm)total lengthFashion & stylish - plain design, strong and durable, 6 adjustment holes to fit you baby dog in correct and comfortable size100% one year quality warranty - we'd like to sell products with your satisfaction so we provide a 100% money back guarantee if there is any quality problems on this products SizeSpec. Adjustable Range Suit For Dog XS 3/8" 6"-9" 10lbs/5kgs S 1/2" 9"-12" 20lbs/9kgs M 5/8" 12"-16" 50lbs/23kgs M+ 3/4" 16"-20" 70lbs/32kgs L 1" 20"-25" 90lbs/41kgs XL 1.5" 24"-29" 150lbs/69kgs