"Make it easier to spot your best 4-legged friend after the sun goes down with the Nite Ize Nite Dawg LED Collar Cover. This handy battery-powered LED collar cover glows brightly to help make early morning or late night fun less worrisome and stressful. Easy to use light attaches securely to your dog's collar with 2 micro hook-and-loop tabs. About as thick as a bandage, this durable pet light features a polymer core around a red LED bulb with a thermal plastic urethane exterior for great weather resistance. Visible up to 1,000' away, this handy collar light features both a glow and flash mode. Runs up to 75 hours in glow mode (100 hours in flash mode) on its one 2032 3V lithium battery (included). Weight: 14 g. 6.89"" x 1.3"" x .42"". Manufacturer model #: NDCC-03. Easy way to add nighttime visibility to your favorite 4-legged friend Great accessory for pre-dawn or after dark outings Flexible, LED illuminated strip fits onto most dog collars Easy attachment - 2 micro hook-and-loop tabs Polymer core with red LED bulb inside a thermal plastic urethane exterior Visible up to 1,000' away Dual mode - steady glow or continuous flash Runs up to 75 hours in glow mode, 100 hours in flash mode Uses one 2032 3V lithium battery (included)"