• For 16-14 AWG Wire: Color-coded blue for quick and easy identification, these terminals ensure a secure crimp for common 16 to 14 gauge wires. • Waterproof & Durable Seal: The connector’s polyolefin tubing contains a heat-activated adhesive lining that, when heated, shrinks to create a weatherproof seal that resists moisture, corrosion, and abrasion. • Clear Tubing for Visual Inspection: The crystal clear insulation allows you to visually inspect the wire's placement and confirm a proper crimp has been achieved before you heat and seal the connection. • Fully Insulated Design: These terminals feature a full insulation layer over the male quick-connect tab, providing excellent protection against electrical shorts and insulating the connection from environmental contaminants.