This polyethylene heat shrink tubing has a shrink ratio of 2:1 and a temperature range to 275 degrees Fahrenheit, making it suitable for electrical, insulation, cable bonding and wire identification purposes. The assortment includes 2 in. and 4 in. long pieces, in outer diameters ranging from 0.12 in. to 1.35 in. (0.120 in., 0.160 in., 0.800 in., 0.290 in., 0.610 in., 0.972 in., 1.35 in., 0.310 in.) Colors: Black, Yellow, Green. Assortment comes neatly organized in a divided PVC storage case with chart inside box lid for easy selection. Not intended to be waterproof.