The Ultimate Harness for Any Service Dog! Headlight Harness’s LED Service Dog Harness is perfect for dogs who work in therapy, medical alert, law enforcement and many other service fields. The durable and comfortable harness features a bright LED light integrated into the chest of the harness. The light projects up to 100ft and lights up the path ahead, while making you and your dog visible to everyone in area. Highly Reflective, Water Resistant, and Light Weight, the Headlight Harness is the only dog harness you will ever need. The Headlight Harness also keeps your pet secure in any vehicle. Simply sit them on the seat, and run the seatbelt through the sturdy handle on the back before buckling them in for a safe, secure, and calm ride to the park, vet, or anywhere your outdoor adventure might take you.