The RNF-3000-12/4-0-SP is a flexible, high-shrink-ratio polyolefin tubing designed for general-purpose electrical and electronic applications. It features a 3:1 shrink ratio, shrinking from a minimum supplied inside diameter of 12 mm to a maximum recovered inside diameter of 4 mm, which allows it to easily cover awkward and irregular shapes. The tubing has a recovered wall thickness of 0.75 mm and operates over a temperature range of -55°C to 135°C. With excellent physical, chemical, and electrical properties meeting UL and CSA standards for 600V at 125°C, it is ideal for insulation, strain relief, light-duty harnessing, and identification of wires and components.