- Enhanced Copper Connections: Our ring terminals are crafted from high-quality copper, ensuring maximum conductivity. The thickened design enhances durability at elevated temperatures, while the closed-end design protects electrical components and wires from moisture, providing a secure connection. - Reliable Heat Shrink Tubing: This set includes a 3:1 dual-wall heat shrink tubing made from polyethylene and hot melt adhesive. Its robust thickness offers outstanding protection for your connections, ensuring longevity and reliability. - Versatile Size Options: With 160 assorted ring terminals and 80 heat shrink tubes, this set caters to a wide range of needs. The ring terminals come in sizes compatible with AWG 2, 4, 6, 8, and 10/12, making them suitable for various applications, whether for automotive, marine, or home electrical projects. - User-Friendly and Dependable: Our battery lugs feature a sturdy construction with a closed-end design that guarantees reliable performance and straightforward installation. Pre-cut heat shrink tubes save you time and effort, improving work efficiency. The inspection window design allows for easy visual verification of proper wire insertion. - Practical Applications: Ideal for automotive repairs, marine wiring, or any DIY electrical projects, this set ensures secure connections in high-demand environments. Whether you are upgrading your car's audio system or connecting batteries in a boat, these components deliver the reliability you need.