haisstronica 200PCS Marine Grade Heat Shrink Wire Butt Connectors,26-10 Gauge Wire Connectors-Tinned Red Copper Waterproof -Butt Splice Connectors(4Colors/4Sizes)

High-Quality Tinned Copper Core- The heat shrinking connector copper core uses tinned copper, which is easier to flatten and grasp the wires, to enhance electrical conductivity Polyolene Pipes- The connector shell is made of high-quality polyolefine and will not break the insulation layer when being pressed. They are resistant to corrosion and chemical erosion Sufficient Hot Melt Adhesive- The connector contains sufficient hot melt adhesive, which generates more adhesive to wrap the wires during use, so the wires will not be easily detached Easy to Use- Compared with other connectors, the heat shrinking connector has a larger selection of fitting tools and is easier to operate in the compressing process, suitable for DIY WIDE APPLICATIONS: High quality 3:1 shrinkage tubing has a heat-activated sealant lining to provide complete 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