This is a one-meter piece of black, adhesive-lined, thick-wall, 3.5:1 ratio heat shrinkable tubing manufactured by HellermannTyton. It is primarily designed for wire insulation parts, and is ideal for corrosion protection, insulation, mechanical protection, and insulation of connections and joints. The tubings diameter shrinks to 1/3 when heated. The tubing is flame retardant, and is designed to handle temperatures up to 135 degrees Celsius (275 degrees Fahrenheit). Additionally, the tubing is halogen free and RoHS compliant. This robust tubing makes it highly suitable for a myriad of industrial applications.