This is not a mind boggling new invention that will change the world or the way we live. Heat shrink tubing is slipped over an electric wire. This, along with the additional piece are spliced together, best results they should be soldered. When cool, slide the heat shrink so that it covers the exposed electric connection. Ably heat to the heat shrink tubing (like from a hair dryer or even a match, don't get to close to set the wires on fire. The little bit of heat will cause the heat shrink tubing to shrink and sealing the wire splice, sealing it from weather causing conditions.
Description: This heat shrink tube set contains 8 different sizes and 5 different colors, so it can meet all kinds of cable wire insulation protection, corrosion, dust-proof requirements. It can be widely used in electronics, communications, automobiles, ships, home projects and any fields you want to apply.