KONG Twistz High Viz Ring Dog ToyKONG Twistz High Viz Rings vibrant, highly visible colors make this the perfect toy for all outdoor environments, weather, and terrain. This twisted ring is easy to grip, with bright colors that stand out in tall grass, at the pool, in snow, on dreary dayseven at night with glow in the dark technology. Durable material gives the Twistz High Viz Ring a dynamic bounce and long distance rolling action. Charge the Ring under a lamp or in the sunlight for