With different diameter of heat shrin tube,you can use this to seal different size of electric wire joint easily.
This sleeving tube will slowly shrink when encount the heat,make it can perfectly surround the wire joint and seal it for protection.
You can use the color on this heat shrink tube to identify what the wire inside is for,keep you from confusing.
The 100mm heat shrink tube is made of polyvinyl chloride is insulative,safely protect you from electric shock or prevent wires from short circuit by touching each others.
Can be used to fast, safe, secure way to wrap wiring harnesses,Protects and insulates.