Doing some electrical work and want clean, secure connections? This Baomain pack of 100 crimp connectors is super handy. These are insulated ferrule terminals designed for AWG 12 wire (or 4.0mm²). They're made from tinned copper, which provides excellent conductivity and helps prevent corrosion. The plastic insulation is heat resistant up to 110°C and color-coded gray for easy size identification. Ferrules are great for when you're working with stranded wire – they bundle the strands neatly into a solid pin, making it much easier and safer to insert into screw terminals or connectors. This prevents fraying and ensures a tight, reliable connection. Each one is about 24.4mm long. Perfect for automotive projects, home wiring, DIY electronics, or any situation where you need professional-grade wire endings. You'll need a proper crimping tool to install them correctly. Having a box of these on hand saves time and makes your projects look pro. A must-have for any toolbox!