... . manufacture price 2. Weight: 280-320kg/set 3. Material: natural rubber 4. high slow effect Characteristic:1. It consists of 6 ... pcs, in red or black color, and made from natural rubber.2. It is cost-efficient, durable service, tough enough for ... of vehicle in the city intersection, highroad crossing, toll gate, garden, village, parking lot, and gas station, etc in order to ...