DescriptionEach terminal in our electrical terminal kit features a strong copper barrel to hold the wire tight when crimped. Translucent heat shrink tubing resistance to excellent stretch and mechanical damage. Can be ideally used in automobile and marine applications.Features- Color: Red. - Material: Copper, PVC. - Size: 3.30X1.10X0.60cm/1.30X0.43X0.24 inch. - Thick copper barrel ensures strong secure crimping every time, providing minimal voltage drop, high current flow, and less heat. These will prevent short circuits and problematic wiring that inferior connectors are known for. - Each ring terminal features a thick copper barrel that resists corrosion to hold the wire tight when crimped.- Insulation tubing has unique dual-walled design. shrinkage tubing has a heat-activated sealant lining to provide a 360-degree secure seal.- It's flame-retardant, waterproof, and can be used underground. - Compliant with all electrical standards, perfect for marine and automobile applications, whether you are working on your boat, vehicle, home or scientific project, our electrical crimp connector will ensure strong watertight seal to make sure everything bond correctly.