With this ring around the Rover, you and everyone else will be able to see exactly where he is in the dark, from any angle and up to 1000 feet away. Keep your dog both seen & safe with this universally sized, bright, Nite Ize NiteHowl LED Safety Necklace. Illumination has come full circle, literally. The brilliantly durable NiteHowl LED Safety Necklace is made with a flexible polymer tube, illuminated by two bright red LEDs, that simply slides over your dog’s neck for hours of nighttime fun & safety. Just trim the tube 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, making your dog clearly visible from all angles, coming and going. The LEDs can be set to either flash or glow modes – great for differentiating more than one NiteHowl-wearing dog. But, as fun as it is (like a neon necklace for dogs!), the best thing about the NiteHowl is that it keeps you and your buddy seriously safe on those after-hours walks, romps in the park, and campsite moon-howling sessions.Battery Life: 60 hours..Weather resistant..2 x 1154 3V replaceable alkaline battery.Dimensions: adjustable length 12″ – 27″ x .3″ diameter | adjustable length 30.5 cm – 68.5 cm x 7.6 mm..Weight: 2.1 oz. | 59.5g..