Motorcycle EZ Pass Holder, For Use With Small Transponder, Polished Aluminum Finish For use with the smaller sized EZ Pass Transponders, measuring approx. 3" x 2" Securely mounts without tools and without the need to remove your existing equipment Made of high-grade aluminum. Lightweight 4oz. Can be mounted on any horizontal bar 1 to 1.5" in diameter Mount Holds on Tight...Won't Move or Slide While Riding