20pc Premium Brass 18-22 Gauge Male-Female Solderless Crimp Bullet Plug Connectors Premium-quality wiring hardware - no soldering needed; made in Taiwan Solid brass for superior conductivity Rust resistant zinc plating, insulating PVC sleeve; 10 pieces each male & female connectors Great for light-duty electric wiring, audio, car/marine; allow repeat quick connect/disconnect 18-22 gauge; other sizes/configurations available