811-2671, 3M, 3M Halogen Free Heat Shrink Tubing, Black 39mm Sleeve Dia. x 1m Length 3:1 Ratio, GTI-3000 Series, Brand 3M, Sleeve Diameter 39mm, Colour Black, Shrunk Diameter 12.7mm 3M Halogen Free Heat Shrink Tubing, Black 39mm Sleeve Dia. x 1m Length 3:1 Ratio, GTI-3000 Series