The CO-Z Round Magnetic Limit Switches are designed for use with sliding gate openers, featuring a sleek black color and durable nylon construction. With a magnetic flux of 1200g and a magnet type of Y30BH, these switches provide reliable operation for both commercial and residential applications. The compact dimensions of 1.1 x 1.1 x 0.7 inches make them easy to install, while the included nylon magnets ensure secure operation. The CO-Z brand guarantees quality and performance in this essential home improvement project. Items are new but in new aftermarket packaging.