Flexzion Bicycle Spoke Light 2 Pack Mountain Bike Cycling Wheel Tire Wire Tyre Bright LED Flash Lamp Bulb for Night Safety and Warning Double Faced Easy To Install Easy installation. Press it onto spokes of your wheel and slide toward rim until fit is tight, and it then remains securely in place. No tools required Streamline shape, stylish appearance. With waterproof design. Anti-reflection optical glass lens, scratch resistant. Directly to the card slot on the wire can be installed successfully Low heat generating, no UV or IR light radiation. Energy-saving and environmentally friendly, high brightness Seismic, impact resistance, non-thermal radiation, safe and stable, reliable. Secure, remains securely locked in position, even during off-road use Highlight the personality. For vocational rider or casual cyclist, show your cool personalities