Using this wire assortment is a breeze. First, simply take the dispenser box and place it on your workbench where it's easily accessible. When you need a wire, pull it out from the dispenser and cut it to the length you need. Remember to use the right tools for cutting to avoid fraying the wire. As for colors, pick the one that best suits your project. When you're done with your work, keep the dispenser box in a dry and cool place to prevent the wires from getting damaged. Also, don't pull the wire too hard as it might break. With proper care, this wire assortment will serve you well for a long time.