200PCS/Box Heat Shrink Tube Waterproof Wire Connectors Shrinkage Tubing Heat Shrinkable Tubes Butt Terminal Connector with Storage Case for DIY (3:1 Shrink Ratio)

Features:
Premium Material: made of high quality polyolefin and lined by adhesive, it is durable, elastic, nonflammable and insulated.
Waterproof: it has an excellent sealing performance, giving water resistance.
Sensitive Conductive: its inside body is highly pure copper tube, ensuring good conductivity.
Transparent Design: This transparent connector provides wires/cable inspection when you insert cables inside.
Function: the connector can perfectly connect cables and protect the cables from water or corrosion.
Convenient To Use: just simple operations enable to complete wires' welding, insulating and sealing.
Use It in: it is widely used in marine, boats, automobiles, DIY, etc.