127pcs Heat Shrink Tubing Wire Insulation Kit – Black Polyolefin (7 Sizes)

Stop using messy electrical tape that peels off after a month. Heat shrink tubing provides a permanent, waterproof, and professional-looking seal for your electronics wiring. This kit includes 127 pieces of black tubing in the 7 most useful sizes for hobbyists. Simply slide a tube over your solder joint, apply heat (with a heat gun, lighter, or the side of your soldering iron), and watch it shrink tightly around the wire. It provides excellent electrical insulation and strengthens the connection (strain relief) so wires don’t break.