BILLET CLAMPS HOLD A COATED TINTED SCRATCH RESISTANT PIECE OF LEXAN TO HELP BLOCK THE SUNS BLINDING RAYS WHEN RIDING. SIMPLE AND EASY TO USE, JUST LIKE THE ONE IN YOUR CAR OR TRUCK. FLIP IT DOWN WHEN NEEDED, FLIP IT UP WHEN NOT. HANDS DOWN THE BEST VISOR IN THE OFFROAD INDUSTRY. CLAMP SIZES VARY, PLEASE MAKE YOUR SELECTION BELOW.