Widely Used Connector BlocksThe wire connectors are suitable for 0.5-4mm/20-12AWG solid wire and 0.2-2.5mm/24-14AWG flexible wire. Widely used in building wiring, industry, lighting, security, communications and networking, etc. Instead of traditional electrical tape and intertwined butt connectors, technological innovation reduces wiring time by 60-70%. Easy to UseFirst remove the wire jacket (11~12mm), just push the orange clip slightly upwards to 90, insert the stripped wire and press the lever to fix the wire. It can make a solid connection without any other tools needed. Each wire connector has a test hole, so you can check if the terminal is powered without unplugging the connector. Safe The electrical connectors are made of the best flame-retardant insulating material modified nylon PA6, which has a long service life, no corrosion, anti-aging and 4KV pressure and against electric shock, much safer than traditional electrical tape. The inner side is made of high-quality copper with high conductivity. It can definitely prevent breakage during use. Reliable and Reusable The compact wire connectors can be managed separately for different wires, which avoids short circuits and fires caused by the aging of the offset frequency band of the wires. It can also be recycled. Meet your needsThis kit includes 110 PCS, PCT-212*55 PCS (2 ports), PCT-213*45 PCS (3 ports), PCT-215*10 PCS (5 ports).