120pcs Waterproof Solder Seal Heat Shrink Butt Splice Butt Connector

?Specifications Shrink ratio 2:1 ?Waterproof for wiring splices ?Easy soldering process ?Transparent sleeve for visual inspection ?Operating temperature 131?-257? (55?-125?) ?Minimum shrink temperature for ring 280? (138?) This 120 piece box set comes with what you need to fix that wire of yours, faster and easier. Just snip it and heat it. Waterproof and able to withstand pull force. Set has 4 awg sizes for your everyday wires. No more using tape and replacing tape when it becomes dry and brittle. Worry free install. 3 Easy steps: Cut wires and strip Slip on connector on both ends of wire Use heat (fire, heat gun, etc)