TST Industries Yamaha 3-3 Signal Plug Converters Turns aftermarket signals into a "plug and play" installation Sold in pairs Can be used with any other aftermarket turn signals as long as they use a compatible male bullet connector Measures 10.25 inches in length. Female bullet connector has a 3.5mm diameter. Fitment is guaranteed when connecting them to TST brand signals however it does NOT give our signals running light functionality.