The EM137-12-221-B is a high-quality, precision-made round electromagnet designed for use in various mechanical and electrical applications. With a diameter of 1.375 inches and the ability to hold up to 44 lbs. of weight, this device is ideal for applications where a compact and reliable solution is required. The electromagnet is powered by 12 volts DC and offers exceptional performance and reliability. Electromagnets are widely used in industrial manufacturing, robotics, automation, and security systems, among other applications. The EM137-12-221-B is a versatile and reliable product that is sure to meet the needs of any engineer looking for a powerful and durable electromagnet.