Premier Quick Snap Collars - SILVER & BLACK, Size: MEDIUM Premier Quick Snap Collars is great for dogs. Its a simple adjustable alternative to the traditional buckle pet collars are easier and quicker to put on and take off. The adjustable feature allows you to simply fit many size necks. Made of the highest quality material and includes a gold paw pendant. Update your pet's to a cool new looking collar today! Small (3/4"w) fits 10"-14" for dogs up to 20 lbs MEDIUM (3/4"w) fits 13"-20" for dogs up to 50 lbs LARGE (1"w)fits 17"-28" for dogs up to 90 ls