THIS IS A GENUINE VINTAGE REFLECTOR WITH BRACKET THAT IS USED ON SCHWINN STINGRAY MUSCLE BIKE BANANA SEATS AND SOME OTHER TYPE BIKES. IT'S NOS NEVER USED, VERY COOL WHEN MOUNTED BEHIND THE SEAT, DATED 1970, GREAT FOR ANY 1960S BIKES AND THE 1970S AND NEW BIKES AS WELL. IT IS 3-1/8" X 3-1/8" INCH WIDE.