Our brilliantly durable rechargeable NiteHowl LED Safety Necklace is made with flexible polymer that's illuminated by bright LEDs and can be recharged for hours of nighttime fun and safety. By illuminating the polymer with multiple colors at the same time, Disc-O mode creates a flowing color-blending pattern that's as fun as it is functional. To use the NiteHowl, simply trim the flexible polymer to a custom fit, give the button on the durable, weather resistant housing a quick press, and the entire collar lights up a full 360 degrees. Easily slides over your dog's neck as a bright LED addition to an existing collar. Details: Universal sizing: cut to fit from 12" - 27"|30.5cm -68.5cm Weather resistant Micro USB rechargeable (cable not included) Battery run time: 5.5 hours Recharges in approximately 1.5 hours Keywords: Pride, Patriot, 4th of July, Love, Rainbow