THE INVIGORATING SMELL OF THE HOT ROD VENT STICK WILL HELP NEUTRALIZE ODORS WHILE CIRCULATING A FRESH, CLEAN SCENT THROUGHOUT YOUR CAR. AN ABSOLUTELY AMAZING WAY TO MARKET YOUR COMPANY, USING THE VERY ICONIC DOME BUTTON TO SHOW OFF YOUR LOGO, BUILDING BRAND RECOGNITION WHILE THE AROMA WILL TRIGGER POWERFUL MEMORIES OF YOUR BRAND. SCENT LASTS SEVERAL WEEKS WITH AIR MOVEMENT CAUSED BY VENT CIRCULATION. 8 INCREDIBLE SCENTS. 2 3/8" L X 1/4" DIAMETER