Tireflys UV Flashing Sparkling White LED Valve Cap x2 for Cars, Bikes, Motorbikes - ultrabright for your wheels! Enjoy driving with these Eyes-Catching LED Lights! It helps increase road safety as well Fit most wheels - Simply take off the old valve cap and replace it The in-built sensors will stop flashing in 30 seconds automatically when the wheel has no movement LED Valve Caps X 2 Pieces and Batteries Included Other colours also available: Sparkling Blue, Red and Tri-colour (red, white blue flashing alternatively)