This magnetic bracelet is made of rare earth neodymium magnets, which is the strongest magnetic therapy available. Magnetic neodymium bracelets may help reduce arthritis pain, soreness, and may assist with circulation throughout the hands and fingers. It is made up of 45 Neodymium Cylinder Magnets. Each magnet is 0.15" Dia. x 0.5" long. They have an EverLube Coating on top of the Nickel Plated and magnetized across the diameter.