Feature:1. Each terminal is made of nylon and brass. Tinned copper is corrosion resistant and can hold the wires tightly.2. Professional operation is required. The brass material is sturdy and durable and has a long service life.3. Convenient design. Male and female matching, multiple plugging and unplugging, quick replacement of failed components.4. One plug and one connection, realize easy docking, onetime docking, safe and assured.5. The connection is firm enough to prevent leakage and rat bites, and protect the safety of the interface.Specification:Item Type: Terminal BlockMaterial: NylonContact Material: BrassSurface Treatment Method: Tin PlatingWire Range: White (0.3-1.0mm (24-18 AWG)), Red (0.5-1.5mm (22-16 AWG)), Blue (1.5-2.5mm (26-14 AWG)), Yellow (4- 6mm (12-10 AWG)).Package List:100 x Male Terminal 100 x Female Terminal Note:Ask a professional electrician to operate