200PCS Heat Shrink Butt Connectors, 26-10 AWG 3:1 adhesive-lined heat shrink, built-in wire stop 4 color-coded sizes for marine, automotive, and trailer wiring

High-Quality Tinned Copper Core - The heat shrinking connector copper core is made with tinned copper, which is easier to flatten and grip the wires, improving electrical conductivity. Polyolefin Tubing - The connector shell is constructed from high-grade polyolefin and will not damage the insulation layer when compressed. It resists corrosion and chemical erosion effectively. Sufficient Hot Melt Adhesive - The connector contains ample hot melt adhesive, which produces more adhesive to encase the wires during use, keeping the wires firmly attached. Easy to Use - Compared with other connectors, this heat shrinking connector offers a wider selection of fitting tools and is simpler to handle during the crimping process, making it ideal for DIY projects.

WIDE APPLICATIONS: High quality 3:1 shrink tubing features a heat-activated sealant lining to ensure a fully secure seal. It is flame-retardant and waterproof, and it can be used underground. It meets all electrical standards and is perfect for marine and automotive uses, whether you are working on your boat, vehicle, home, or scientific project