Trailer Axle Stop Device, Heavy Duty Magnetic Trailer Axle Stopper, Trailer Tandem Slide Stopper for Trailer, Refrigerator Trailers, Dry Van Trailers, Semi Truck. Powerful Magnet for Secure Locking:The tandem stopper for semi trucks features a robust magnet integrated into a durable rubber face, ensuring the lock pin remains securely in place for accurate trailer axle positioning.
