Dog E Glow LED Light Up Comfort Dog Harness (S, M, L sizes) WHAT YOUR DOG NEEDS | Pair Dog E Glow harnesses paired with the light up leashes are everything your dog needs to stay safe and stylish. SAFETY | We have you and your pets safety in mind with our patented design that brings an attractive design by day and LED lighting by night so your dog is visible up to 1,000 feet in the dark (in steady or blinking modes) QUALITY DESIGN | Dog E Glow harnesses are custom-designed and sewn with the highest quality nylon around the LED lights for a long-lasting harness. Our harnesses comes in 3 colors and the girth sizing is adjustable. DURABLE AND WEATHER-RESISTANT | Dog E Glow harnesses are lightweight, durable and designed to be weather-resistant LONG LASTING GLOW | Our LED lights are made to last for up to 100,000 hours, and each harness comes with an extra set of batteries