... 30/50/100m per roll A.About productPVC Helix Steel Wire Strengthen Tube Material: PVC Specification: 1/4inch~8inch Length ... transparent,blue,green,or customerized Material: PVC with steel wire reinforced Quality: Without odor,non-toxic,flexible,light SpecificationsPVC ... tube,Silicone Fiberglass tubing,PVC tubing,heat shrink tubing,Teflon/PTFE tubing,convoluted/corrugated tubing, silicone O ring etc ...