4 Pack Double Faced Bicycle Spoke Light Wind Fire Wheels Silica Gel Spoke Light Steel Wire Lamp Mountain Bike Wheel Light - Red,Blue,Green and Multi-Color Install or remove without any tools only need 2 seconds Secure, remains securely locked in position, even during off-road use. It is water and shock resistant. This bicycle safety light will help you make your visible on the road in dark. Suitable for the professional or casual bicycle rider.