LinkMejor 20PCS 6 AWG-3/8 Marine Grade Wire Lugs, Tinned Copper Ring Terminal Connectors Ends W/3:1 Dual Wall Adhesive Heat Shrink Tubing, Heavy Duty Anti-Rust Battery Cable Ends

LinkMejor 20PCS 6 Awg-3/8" Pure Tinned Copper Ring Terminals come with 20PCS 9.5 mm dual wall 3:1 heat shrink tubing, 10 red and 10 black. They are made of 100% pure copper for maximum conductivity and feature tin-plating that passed 48-hour salt spray test for anti-oxidation and corrosion resistance. Both the lugs and polyolefin heat shrink tubing are rated 600V and 257°F for safety. The heavy-duty wire lugs offer high-impact resistance, with a closed-end design to protect against moisture and prevent solder leakage, flared openings for easy wire insertion. Compliant with US standards, installation is simple, and they fit solid or stranded wires, support soldering or crimping, working well for automotive, marine, RVs, solar systems and more.