Leave A Mark
Tuesday, April 14, 2009 at 5:27AM |
Mikkael Wired's Gadgetlab says...
... we still love the Contrail for its ability to graffiti the streets as you ride. The device sits next to the rear tire and contains a wheel and a reservoir of powdered chalk. As you ride, the wheel transfers the powder to the tire and you leave a mark.
Instructions: Follow the purple line for the train station and keep hoping it won't rain.
Contrail,
bike advocacy,
chalk in
Bike,
Commute 




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