The first arrived damaged but the seller replaced quickly and without question. I had no problems and the magnet holds the key on my Parabody 660 like it should. Good price and excellent customer service from the seller.
Pros
The biggest benefit of using magnetic quick release pins is twofold: First, it eliminates the need for other time-consuming fastener combinations such as head and cotter pins, a pin, and a spring-loaded locking steel ball. Once fully installed, a strong ring magnet secures the pen to the application. It works like a split pin and split pin in one. Second, the locking length of the PIN is flexible as only 75% of the application plate penetration length is required.