Thermo Trubka NST-4 / 2-10-18 (in 18 parcels) Navigator 71191 is a thermo shrinkage pipe used for electrical insulation, cable marking and mechanical protection. This pipe is made of modified polyethylene material that resists sustainable and UV rays. The shrinking rate is 2: 1 and the internal diameter of the tube is 4 mm at the beginning of a shrinking, and after a shrink is 2 mm. The tube shutter varies between 125-200 ° C. The processing temperature is between -55 ° C and between +105 ° C. Each parcel has 18 pipes and each tube is 0.1 meters. The pipes are presented in different colors.