Watch out safety triangle! Now comes the PurpleSky™ safety circle. At just a tad under 6" across, this safety circle fits just about perfectly on the rear of a pannier rack. There are 5 grommet holes around the outside of the circle for easy attachment. The inside circle is made out of the same retroreflective material that is on their flags and is 3.75 inches across; a visible reflective area of 14 square inches of 3M Scotchlite! Why settle for the same old safety triangle when you can have the new 'european' look of the safety circle. Comes in 5 different colors and ships with 5 zip-ties for easy attachment anywhere on your bicycle. (colors in picture from top left to bottom right: Sky Purple, Blaze Orange, Peacock, Sunrise Yellow, Hot Pink, Neon Green, True Blue, & Red).