NiteHowl Max Necklace. Uniquely designed for fluffy, thick-coated dogs, its extra-wide, weather-resistant band lays flat on top of their coat, ensuring it doesn”t get lost in the fluff. With a full 360 degree ring of light, slip on this necklace so you can always spot your pup from the yard to the park (and ensure drivers can, too). Simply press the button to shine, cycling through Disc-O Select”s three selectable colors of red, green, and blue, plus color-changing Disc-O mode for a unique color blend. Cut the band on its end for a perfect fit, with an adjustable size from 12″ to 27″ (30.5cm – 68.6cm). Recharging in 2 hours with a micro USB cable (not included), NiteHowl Max has a run time of 10 hours to keep up with your fluff ball.