3M™ Heat Shrink Tubing GTI-3000 is a range of flexible, thin walled RoHS Heat Shrink Tubes, made of crosslinked Halogen free Polyolefin. GTI 3000 provides good insulation protection in various industrial applications. They are also suitable for cable marking and identification applications. GTI 3000 tubes have a 3:1 shrink ratio and are available in the following colours: Clear, Black, Red, Yellow, Blue, White, Green, Grey and Green/Yellow striped.