Forney 54817 Connector, Heat Shrink, 14-16 AWG, Color coded tubing with wire gauge imprint provides easy identification The butted seam is formed when metal is stamped, rolled and butted to create the connector barrel Should only be used with stranded wire and must be crimped in the proper place to avoid opening the seam Translucent, adhesive-lined polyolefin tubing that allows visual inspection, prevents wire corrosion and provides a waterproof seal Conforms to automotive manufacturer's specifications for wiring repairs necessary for maintaining electrical warranties