FLECTR is the world´s first wheel reflector which combines outstanding aerodynamics with state-of-the-art reflection while being virtually weightless and indestructible. Eye-catching and paper-thin FLECTR fits every type of spokes like a glove. Forget about heavy, bulky plastic parts and say goodbye to those ugly wheel reflectors. FLECTR´s advanced reflection technology meets the high standards of police and rescue vehicles in the U.S. and Europe. Even the shape and profile of FLECTR have been tested up to flow velocities of 100 mph / 160 Km/h without flapping, moving and noise. With a weight of only 0.024 oz / 0.7 gram FLECTR does not affect the dynamic balance of the wheel in sharp contrast to others. Just remove the foil carrier, center the reflector on the spoke vertex and press both side panels gently together. Tool-free and easy.