This 19 piece waterproof male and female electric connectors with a storage box are just what I needed for working on my truck! Everything I need is here, and the rest will go into my automotive box for when I need it again, I love that it comes with a sturdy storage box. These are very good quality connectors, heat resistent and won't have problems in the weather. The only problem that I see with it is I should have bought 2! There are 2 pin, 3 pin, 4 pin, 6 pin and 8 pin connectors inthis set.