ITEM NAME:530Pcs Assorted 2:1 Heat Shrink Tubing Tube Cable Sleeving Wrap Wire Kits 8 SIZE.Tensile strength: 10.4 Mpa. Dielectric strength: 15 kV / mm. Supplied format ( round or flat ): Product is supplied flat. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.