25pc Premium Solderless Brass 10-12 Gauge Butt Connectors Terminals Solid brass components for sure connection; zinc-plated for superior corrosion resistance Allows quick, secure wiring connections or splicing without solder Great for speaker, automotive/marine, & light-duty electrical wiring Excellent quality - made in Taiwan; PVC insulator sleeve Fits wire 10-12 AWG; other sizes and configurations available