High Quality: 4mm stackable banana plugs are made of copper nickel plated which have good electrical conductivity. Shells are made of insulating PA material.
Solderless: First pass the bare wire through the gray base. Then through the 4mm jack of the banana plug, then insert the screw from the end of the banana plug, tighten the screw, and finally put on the shell.
Suitable for engineers or DIY enthusiasts. Banana plugs are stackable. Widely used in schools, homes, laboratories and factories.
Package include: 5PCS Black + 5PCS Red Banana Plugs.
Warranty: Hope you can be satisfied with our banana plugs. We provide guarantee of a 30-day replacement or refund for any problem and 1 year warranty. If you have any question, feel free to contact us.