04mm OD X 2.5mm ID Super Flexible Black - SFN04/025N Super-Flexible nylon tubing has been specially developed to meet demands for a nylon tubing which gives superior flexibility over existing materials."Super-Flexible" remains flexible even when exposed to very low temperatures and has extremely high impact resistance. The combination of these qualities with the advantages of superior abrasive resistance allied with high durability to oil and petrol, provides many interesting applications, including:- Instrumentation lines, fuel and oil pipes, flexible paint and solvent spray hose.