About this item ▶Easy to install, no tools required. Plug and play, then finish. Different wires are handled separately, different diameters can be safely connected. Built-in test point, electrical test no need to remove the tape. Instead of traditional electrical tape and twist-type electrical butt connectors, technological innovations reduce wiring time by more than 50%. ▶They are ideal for removable connections as there is no is not necessary to solder. Suitable for copper wire size 0.2~4 mm² / 24~12 AWG. Connect any combination of solid, stranded and flexible copper wire faster and more reliably. If you need to change other wires, you just need to lift the small lever and pull out what you need and replace it, which is very convenient. ▶Made from the best flame retardant insulation material Nylon PA66. With the advantages of long service life, corrosion resistance, aging resistance, high pressure resistance, insulation and flame retardant, it can effectively prevent electric