WAGO LEVER-NUTS are a great way to connect stranded, fine stranded, and solid wire from 24-12AWG. Open the lever, insert the stripped wire, close the lever. There is even a handy gauge on the side of the connector to show you how far back to strip the wire. These connectors are re-useable and are great for both permanent or temporarily wiring. This 32pc kit contains the most common sizes and comes in a sturdy plastic case that can be thrown in a toolbox, bag, auto, camper, etc. Great to have for an emergency repair or just normal wiring jobs around the house or shop. The 32pc compact splicing connector assortment contains 14x 2 conductor (221-412), 10x 3 conductor (221-413), 8x 5 conductor (221-415) connectors organized in different compartments. Also includes instructions on the inside of the lid.