... 380*53 5.Materal:Rubb Rubber Road Traffic Speed Hump 1. Rubber Road Traffic Speed Hump (speed hump, road hump, speed breaker, sleeping ... are typically less than or near to 1 foot (30 cm); 3. whereas road humps are longer and are typically 10 ... batons, traffic signal baton, solar warning/working light, Traffic Direction Sign, road cone, Reflective Guide Pillars, Warning Triangle, Caution Chain, led ...