Whether you want to doodle on the ground as you ride your bike, find your way home after a long drunken bike ride, or want to keep track of where your child is at the moment, the Chalk Trail Bike Attachment will do the trick. The Chalktrail is an attachment you can put on any bike with tire sizes between 12″ and 29″ that will trail along a piece of chalk behind you and will last for up to 15 miles of chalk lines.
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