Fiber Flare 3D-360 Degree Fiberoptic Light TWINPACK - BE SAFE ! - BE SEEN ! Fiber Flare 3D-360 Degree Fiberoptic Light TWINPACK - BE SAFE ! - BE SEEN ! Visible over 300 meters (over 1,000 feet) ! Omni-Directional Visibility 360+ degrees. Up to 20 times more illuminated surface area then regular rear lights ! Silicone attachment slings included for Use almost anywhere. Bike Frame, Bike Jersey, Backpack, etc...