1,Designed for preventing the vehicle from slipping away. 2,very good 3,Traffic equipment 4,in time 5,manufacturer SpecificationsRoad Block *Material:PE+PA pedestal material and stainless steel thorn *Packing:57*21*56cm GW:18.5kgs *Intercept length:5mm Road blockSpecifications: Item numerperformanceLZJ-A5The amount of felting needl(PCS)120Intercept length(m)5effective width(mm)185effective length ...