Superior Material: All of these SC ring terminals are made of corrosion resistant red copper, and the insulating covers are made of premium PVC with good insulation, high temperature resistance and no easy to oxidize. Wire Contact Well: These copper cores will provide you with increased current flow and less voltage swing to prevent wiring failures and reduce equipment downtime, they are designed with a good conductivity, insulation and safety. Easy to Crimp: Construction terminals with high temperature durability and closed design seal out moisture, the connection is reliable, and the premium flared opening makes wire insertion easy. Insulated covers are easy to use, just choose the right size to fit the cable Great value set: you will get 60 pieces SC cold termination ring terminal including 8 types 4 6 8 10 awg and 60 pieces of 4 types battery terminal harness insulator covers in 2 colors (black and red), totally 120 pieces for respond to your various requests Multiple uses: Our battery cable lugs can be used for automotive, rail transportation, machinery and equipment factories, distribution boxes, marine, golf carts, solar panels, the domestic or outdoor applications, etc..You'an store products Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.