Four Paws Nite Brite Reflecting harnesses make walking a pet at dusk night or dawn safer than ever before with our newly patented reflective material. When light either directly OR indirectly hitsin. the Nite Brite harness-it literally appears to glowin. or instantly illuminatein. Available in six sizes and three colors. Red Black and Blue. to complement the colors of our Nite Brite Leashes.