This is the WS Deans 3-Pin Connector Set.
FEATURES: Low resistance with gold plated contacts Compact
size and light weight Polarized so as not to be installed backwards Great for
battery and servo connectors
INCLUDES: One Male plug (Black retangular shaped) One Female
plug (Black retangular shaped) Six Heat shrink tubing (about 3/8")
COMMENTS: The instructions are on the plastic packaging This
connector is used on some of the older Ace and World engines radio systems.