Material: The copper wire and PVC material used for these circuit soldering waxed cloth wires is highly durable and reliable. Size: This kit contains 4pcs 1M solder wax cloth wires for soldering circuits on electric guitars, electric basses and other instruments. There are 2 black and 2 white strips each so that you can distinguish and connect the correct wires. Purpose: These wires are mainly used to connect pickups and circuit boards, providing the necessary audio and power signal transmission for electric guitars and electric basses. Installation: The wires need to be soldered for installation. Before installation, you will need to clean and treat the connection points to ensure a strong and stable solder. Note: Please compare the appearance, shap.