My school is having a robot competition and I want to have treads on my robot for better traction (robot tug of war). After some searching I decided that I would use timing belts as treads. However I am concerned because the measurements don't make sense on this site. http://www.amazonsupply.com/dp/B000F...sp_dp_g2c_asin
These are bands of rubber that are 10 cm long and half a cm thick yet they are listed as one pound. Is that amazon policy? Is there any other problems with using them as treads?