1 X $1.10
No fragile pins sticking out of the wing, no pig tails to fumble with and try to connect, the spring loaded connector simply makes contact when you bolt the wing to the fuse. The wing bolts hold it tight and provide the alignment needed.
A little bit easier to use than permanately bonded pin and sockets plugs and miles easier than plugging in a four pin connector while your trying to bolt on your wing. Also allows for a cleaner wiring installation inside the fuse, as you are not required to have a pigtail hanging down from the wing saddle, possibly rubbing on your pullstrings, control rods and or servos.
Sold in sets. One spring plate, one reciever plate.