New Roadblocks / Roadblocks

Recent plastic roadblock exist many problems of easily being damaged, transportation inconvenience, and poor stability.
Spiral roadblocks couldsolve the above use of roadblock and problems of transportation with the new elastic helix.While it is not used, the roadblock is compressed
into a thin disk shape, which is convenient to storage and transport. While it is used, theelastic helix structure is expanded.While encountering collision, it can swing back
and forth, which effectively avoidsto be damaged. During the night, white fluorescent substance on the helix surface could also play a necessary warning effect.