Practical Electrical Waterproof Seal Heat Shrink Butt - Sleeve Wire Connectors. Features: 1.An Easy One Step Connection of Wires, Soldered, Insulated and Sealed. 2.Can Be Great Use in Marine and Automobile Applications. 3.Polyolefin Tubong in Outside and Hot Melt Adhesive in Inside. 4.Solder and Seal and with Advanced Waterproof Function. 5.Polyolefin Heat Shrink Butt Connectors Improved Pullout Strength, Provides Seal, Strain Relief, Cable Check, and Insulation. Specifications: Yellow: Connectors: Diameter 6.0 Mm, Cable Cross-section 4.0-6.0 M (A.W.G.:12-10); Blue: Connectors: Diameter 4.5mm, Cable Cross-section 1.5-2.5 M (A.W.G.:16-14); Red: Connectors: Diameter 2.7 Mm, Cable Cross-section 0.5-1.0 M (A.W.G.:22-18); White: Connectors: Diameter 1.7 Mm, Cable Cross-section 0.25-0.34 M(A.W.G.:26-24). Package Includes: 10x Connectors . We are an international based seller that will ship your order from abroad, please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally.