811-2669, 3M, 3M Heat Shrink Tubing, Black 18mm Sleeve Dia. x 1m Length 3:1 Ratio, GTI-3000 Series, Brand 3M, Sleeve Diameter 18mm, Colour Black, Shrunk Diameter 6mm 3M Heat Shrink Tubing, Black 18mm Sleeve Dia. x 1m Length 3:1 Ratio, GTI-3000 Series