510Pcs Heat Shrink Butt Connectors Kit, Insulated Butt Splice Terminals Electrical Wire Crimp Connectors Set, Waterproof Heat Shrink Butts Connector for Automotive Vessel Electrical

["【Tinned Copper Core Enhances Conductivity and Durability】Adopts a sturdy tinned copper core design combined with strong crimping technology . Ensures higher conductivity and achieves long-lasting and reliable electrical connections","【Kit Configuration】Including 510 heat shrink wire connectors , consisting of 200 blue (16-14AWG) + 200 red (22-16AWG) + 50 yellow (12-10AWG) + 60 transparent (26-22AWG) . Suitable for both home DIY projects and professional applications","【Wide Industry Applicability】Excellent waterproof and stability performance . Suitable for automotive , marine , electrical and electronic industries , providing multi-scenario wiring solutions and improving work efficiency","【High Strength and Waterproof Guarantee】3:1 shrink ratio heat shrink tube with sufficient built-in hot melt adhesive . Provides high tensile strength and complete waterproof sealing , preventing wires from slipping out and ensuring stable performance under extreme conditions","【Simple 3 Step for Safe and Waterproof Performance】Just insert the wire , crimp both sides to quickly create a sturdy and waterproof connection . Effectively resists humid environments and protects equipment from damage"]