250PCS Waterproof Solder Seal Sleeve Heat Shrink Butt Wire Connectors TerminalsIf you do a lot of DIY electrical work, you know the value of saving time and effort when connecting one wire to another. With these no crimp, no solder wire connectors from Randy & Travis Machinery, you'll never have to fire up your soldering iron or get out your wire crimping tool. With just your fingers, a heat gun, and these connectors, you'll be able to connect your wiring quickly, without the hassle of traditional methods. They have a broad