6-pc. ceramic disc magnet set. Each measures 1in. dia. x 5/32in. thick. Also known as ferrite magnets, these powerful discs are idea for medium-weight projects. They are made from the highest grade of ceramic magnet material available, giving them unbeatable pull strength, and are ideal for all types of projects around the house, office, shop or garage. These magnets are highly resistant to demagnetization, and have excellent resistance to corrosion. Material Ceramic, Product Style Holding magnet, Thickness in. 5/32, Diameter in. 1.