Tinned Copper Material: The surface of the copper material is tinned, which can improve the anti-discoloration performance of copper, extend the anti-corrosion period, increase the solderability, and provide better electrical conductivity. Nylon insulation sleeve: rigid nylon insulation sleeve, with ductility, beautiful shape after pressing, strong press. Quick Wiring: Remove the outer sheath from the end of the wire, insert it into the insulated terminal and clamp it with crimping pliers. Fine workmanship: Multiple quality assurance checks, products are smooth and borderless no burr 50u thick gold-plated terminal, not easy to oxidize, lower impedance, stronger penetration. The press is comfortable: You do not need a lot of force to curl the tips, Can be operated with one or two hands,ergonomic plastic handle,The screw secures the mold against falling out., Manufacturer: HVSYVVSRL