... are very effective in slowing travel speeds. 5. Rubber Road Traffic Speed Hump are good for locations where very ... , highroad crossing, toll gate,garden, village, parking lot, and gas station, etc. 7. fixer for asphalt roads : expansive screw ... traffic signal baton, solar warning/working light, Traffic Direction Sign, road cone, Reflective Guide Pillars, Warning Triangle, Caution Chain, led ...