MATERIAL: The heat shrinkable braided sleeving is made of PET fiber and PE filaments. This braided sleeving can shrink its inner diameter to 1/2 of the original diameter. Operating Temperature: -55° C to +135° C (-67° To 275° F) - Maximum Continuous Use Temperature: 135° C (275° F) FEATURES: It features an outstanding noise reduction, flexibility, and heat resistance. It also provided good insulation and protection from moisture and abrasion EASY TO USE, PERFECT FIT: The Heat Shrink Braided Sleeving is very easy to use and will do the job perfectly. It shrinks quickly and evenly with a heat gun, and it fit snugly over the wires and connectors WIDELY APPLICATIONS: Braided sleeving is mainly used to bundle and protect cables for electrical projects, electrical Insulation, Strain Relief, Corrosion Protection, Solder Insulation, Wire Bundling & more.This ratio 2:1 Shrinkable sleeving can be easily installed within irregular tubes