Borrowed a mate's trailer and the plug just doesn't fit your car's socket. Happens more than you'd think on a Saturday morning when you're already running late. This Jaycar adaptor lead bridges that exact gap: 7 Pin Flat plug into your vehicle, 7 Pin Small Round socket out to the trailer. About 20 cm of cable between the two ends. No splicing, no guesswork, no calling around hoping someone's got a spare. Plug it in, check your lights, hit the road. If you need a different connector pairing, the full PA2061–PA2066 range covers all six 7 Pin Flat / Large Round / Small Round combinations. Match the plug end to your car's socket and the socket end to the trailer's plug. That's it. Sorted