1. Specialized design, notable effect on slowing down, without noise and uncomofortable feeling.

2. High intensity rubber, firm, practical and durable to impact.

3. Quick and flexible combination and convenient instalment.

4. Black and yellow interval, catching drivers' attention greatly at any time -day or night.

5. Mainly usde in city intersection, roadway crossing, toll gate, parking lots, gas station, garage and so on.