Durable construction for long life: Pure copper gold plated joints with automatic wave solder joints provide reliable contact, resistance to plugging and quality performance. The outer casing is made from environmentally friendly PP engineering material that is soft yet durable. Solderless and tool wiring: No welding required thanks to the 128type environmentally protected copper terminal design. Easy wiring with no soldering iron or bulky tools, while delivering firm connections and good transmission performance. Slim 16 mm profile: Only 16 mm thick, 4 mm thinner than typical solderless connectors, enabling use in narrow or tight spaces without compromising performance. Strong antipull design: Each unit includes a crimping ring and four tail pipe sizes—5 mm, 6 mm, 7.5 mm, and 8.5 mm—to ensure cables stay secure in use and prevent dropped wires or contact loss. Practical applications: Automotive wiring harnesses and motorcycle/ebike assemblies that require solderless, durable connections; electrical panels, dashboards, and control cabinets where space is limited; quickwiring of home appliances or DIY electronics without soldering, ensuring reliable connections in tight installations.