Heat shrink tubing - TOOGOO(R) 42 pcs Set Assortment Shrink Tubing Universal Black, Red Great collection of heat shrink tubing, 6 sizes, 2 colors Delivered inside diameter: 1.0 mm, 1.5 mm, 2.5 mm, 3.5 mm, 5.0 mm, 6.0 mm minimum, Fully shrunk inner diameter: 0.5 mm, 0.75 mm, 1.25 mm, 1.8 mm, 2.5 mm, 3.0 mm maximum Overall length: 2.59 meters (42 pieces)