SAFETY: Highly reflective threads keep high visibility at night for safety. And you can easy find your furry pet in the back yard at nightMATERIALS: Dog collar is made of nylon with thick neoprene padding on the back, making it soft. This prevents any irritation on the neck and makes it an all-weather dog collarCLASSIC: This nylon dog collar is a classic yet stylish collar that comes in 12 colors and 5 sizes so you can find just the right one for your dog. A separate loop on the collar makes it easy to add dog tags and leashes onto the collarCONVENIENT: For quick release, the buckles are made of ABS plastic. The buckles allow the collar to adjust around the neck of the dog for ultimate comfortSIZE: X-Small "W, Adjustable Length 8"-12". Small "W, Adjustable Length 12"-16". Medium 1"W, Adjustable Length 14"-20" . Large 1"W, Adjustable Length 16"-24". X-Large Width 1 1/4",Adjustable Length 18-28". Suitable for puppy, small, medium and large dogs