The terminal block material is copper, which has better performance, better oxidation resistance and better durability 2.8mm compatible wire: 0.5-1.5mm (AWG 22-16); 4.8mm Compatible Wire: 0.75-2.5mm (AWG 18-14); 6.3mm Compatible Wire Type: 0.75-2.5mm (AWG 18-14) Easy to use: just insert both ends of the plug crimp wire into the plug, and the male and female terminals can be easily connected to complete the wiring. Wide range of applications: suitable for most electrical switches, batteries, automobiles, bridge batteries, household appliances, electronic components with pins, etc. Package includes: 120 pairs of 2.8mm / 4.8mm / 6.3mm male and female crimp terminals + 240 insulating sleeves. Please see quantity chart for specific quantity. A box contains a total of 480 pieces Welcome to meet