ITEM NAME:150pcs Polyolefin 2:1 Heat Shrink Tubing Tube Sleeving Wrap Wire Kit Cable +Case.Material: Polyolefin. Big collection of heat shrink tubing, 8 Specifications, 2 colors. 150 Heat Shrink Tubing With Box. Supplied Format (Round Or Flat): Product Is Supplied Flat. Full Shrinkage Temp: +110Â °C Maximum.