Duck Brand pipe wrap provides the same insulating value as fiberglass without the irritating fibers. No gloves or masks needed! Made from plastic fiber but performs like traditional fiberglass wraps. Insulates cold and hot pipes. Note: Not usable with heat cables. Each package contains 3-Inch by 25-Feet of 3/8-Inch thick wrap. This pipe wrap insulation may be used to insulate domestic hot water pipes carrying water to the tap, or forced hot water pipes carrying water to radiators or baseboard heaters. This pipe wrap insulation performs as well as fiberglass pipe insulation, but this insulation does not contain irritating fiberglass fibers, eliminating the need for gloves during installation.