These are genuine FrSky antennas and as such they fit perfectly and work exactly like the originals and at these prices it pays to buy spares.
Accidentally yanked off one of the antenna wires from the connector on a receiver. Replacement was easy to do, although it took maybe a bit more force than I was comfortable with applying to the connector and receiver. Don't even think about trying to reattach the old antenna to the connector. It might cost you a lot more than the buck/quarter the replacement costs. While I was at it I shoulda just bought some more spares. OK, next order!!!