【Safe Material】- The terminal blocks are made of insulating and flame retardant material, which has a long service life, no corrosion, anti-aging and under 4KV pressure and against electric shock. reduce hidden dangers high temperature leakage in the circuits, as well as the current test hole. 【Easy to Use】- Connector block with button design, no need to be operated by tools, just push the orange clip upward slightly at 90°, then plug the wire and done. Instead of traditional electrical tape and intertwined butt connectors, technology innovation reduces wiring time by 70%. Makes work much easier and neater. 【Wide Application】- Electric lever nut connectors with 2 port/3 port/5 port are universal for hard and soft wire, such as you can use them to control multiple lights by one switch, 3 types blocks of connectors meet your different needs. It is widely used in building wiring where space is limited for all necessary connections. 【Replace and Reusable】- For maintenance replacement, you