SES Sterling Expandable Braided PET Black Cable Sleeve, 28mm Diameter, 25m Length

This plastic tubing can, when drawn in its length, adapt to various cable diameters, but is sprung, so it returns to its smallest diameter. The cut ends should be protected against disintegration by being melted using a soldering iron.
Temperature range: -50 °C → +130 °C
Colour: Black