Charasteristcs 1) One time forming, cold resistant, hot resistant, anti-impact, not easy to be old. 2) The color can be yello Charasteristcs1) One time forming, cold resistant, hot resistant, anti-impact, not easy to be old.2) The color can be yellow and red and it is attractive in the night with the reflection film.3) With the water in it, the buffer elasticity will be better, without the water, ...