Easy to install, no tools required. Plug and play, then finish. Different wires are managed separately, different diameters can be connected securely. Built-in test point, electrical test without removing the tape. Instead of traditional electrical tape and twist-on electrical butt connectors, technological innovations reduce wiring time by more than 50%. They are ideal for removable connections because there is no need to solder. Suitable for copper wires of size 0.084 mm / 2812 AWG. Connect any combination of solid, stranded, and flexible copper wires faster and more reliably. If you need to change other wires, you just need to lift the small lever and remove what you need and replace it, which is very convenient. Made of the best flame-retardant insulating material Nylon PA66. With the advantages of long service life, corrosion resistance, aging resistance, high pressure resistance, insulation and flame retardancy, it can effectively prevent electric leakage. Therefore, lever nuts are safer than traditional metal nuts. The internal spring contact is made of copper, a special surface coating to prevent oxidation, low resistivity and better conductive properties. The spring clamping technology is reliable and does not fall off. Since the clamping force can be automatically adjusted with the conductor thickness, the conductor contact is reliable and is not affected by the installation technology. 100% Satisfaction Guaranteed! If you have any questions about the products you ordered, please contact us in time, we will do our best to provide you with satisfactory service. We always care about customer experience and strive to improve product features and details.