These are the 4.0mm Gold Plated Connectors from Reedy. FEATURES: Gold plated YOU WILL RECEIVE: Two male bullet connectors Two female bullet connectors REQUIREMENTS: Solder and soldering iron - HCAR0776 and STAR2000 SPECIFICATIONS: Length: 0.8" (20.6) Diameter: .16" (4mm) inside cnh 11/05/08 ir/jxs &