Make sure you and your dog are safe on those dark, winter nights with Yellow Dog Design's durable, but fashionable LED dog collar! Made in the USA from water-resistant polyester, the collar includes a plastic safety clip buckle, and comes with a USB charger. There are three settings - fast flash, slow flash or constant. For a complete charge, plug in for three hours, or for just an hour for a quick charge. The unit will shut off automatically after a period of eight hours. Available in four adjustable sizes, each collar comes with a one-year guarantee. Features: Durable, but fashionable LED dog collar Designed to keep your dog safe all-year round Exterior is made from water-resistant polyester Plastic safety clip buckle Comes complete with a USB charger Simply press the collar to activate Three settings - fast flash, slow flash, and constant. Complete charge takes three hours, or for a quick charge, plug in for one hour. Unit shuts off automatically after eight hours Do not submerge in water Made in the USA Comes with a one-year guarantee Available in four sizes, as follows: Size Length Width Small 12.5"-14.5" 1" Medium 16"-20" 1" Large 19"-25" 1" XL 19"-29" 1"