Package type: CT á 4 Metre Model Thin-walled Type Heat-shrink Colour Black Shrink rate 3:1 Inner diameter before heat-shrink (mm) 18 Inner diameter after heat-shrink (mm) 6 Length (m) 4 Wall thickness after shrinking (mm) 0.75 Operating temperature (°C) -55 - +135 (°C) 100 Material Crosslinked polyolefin (XLPO) Halogen free Yes With inner glue No Printable No Transparent No Breakdown voltage (kV) 25 Self-extinguishing Yes