Material: 100% Copper. High Electrolytic Grade Copper Terminals, for maximum conductivity improves high Temperature and durability. Tinned copper wire lugs are corrosion free; ideal for marine, automotive or outdoor use, distribution boxes, Electric industry Battery, inverters, home applications, solar panel, etc. Comply with all EU Standards. Set Contains: 170 Pcs, 12 Types SC Cold End Termination: 12AWG 20 pieces SC4-4, 20 pieces SC4-6, 20 pieces SC6-6 20 pieces SC6-8, 20 pieces SC10-6, 5 pieces SC8-10, 5 pieces SC16-10, 10 pieces SC16-8, 10 pieces SC16-6, 5 pieces SC25-10, 10 pieces SC25-8, 10 pieces SC25-6; the wire copper terminal set meets your various needs. Easy to use: These battery cable lugs are easy to be crimped, pliers will crimp the wires and lugs together, put the wire into the tail end of the terminal and fix it tightly to ensure connection and press tight the crimping tool. This Complete Set comes in a Sturdy Plastic Transparent storage box that keeps all your important parts well organized and in one place with out losing them. Product provided by MMOBIEL - We always try our best to exceed your expectations at every turn. Join the ever-growing list of satisfied customers and discover the difference with MMOBIEL.