839-5523, Alpha Wire, Alpha Wire Heat Shrink Tubing, Black 50.8mm Sleeve Dia. 2:1 Ratio, FIT Shrink Tubing Series, Brand Alpha Wire, Sleeve Diameter 50.8mm, Colour Black Alpha Wire Heat Shrink Tubing, Black 50.8mm Sleeve Dia. 2:1 Ratio, FIT Shrink Tubing Series