Our Bulk Heat Shrinkable Tubing has a double wall construction that is adhesive lined for added protection. The diameter of the tubing fits a wide range of sizes from 24 GA primary wire to heavy 4/0 gauge cable and will remain flexible even after shrink. This product is designed to protect against corrosion and can be used to identify negative or positive polarity. Heat shrink tubing is known to act as a strain relief and help in the prevention of abrasion. Our heat shrinkable tubing is RoHS Compliant.