Brand Name: Master Magnetics | Color: BLACK | Length: .187 in. | Material: Ceramic | Number in Package: 2 pc. | Packaging Type: Clamshell | Pull Capacity: 0.7 lb. pull | Telescoping: No | Usage: Use to make light to medium weight items magnetic | Width: 1.5 in. | MGOe: 1.05 This 2-pack of round shaped ceramic discs is perfect for do-it-yourself projects and making your own magnets. Glue to the back of any light to medium weight item and place on refrigerators, lockers, white boards or any ferrous metal surface. Perfect for home, school and office. * * More About Ceramic Magnets: Our hard ceramic ferrite magnets are composed of iron oxide and barium or strontium carbonate. Ceramic magnets exhibit relatively good holding strength for their price, making them a popular choice for many consumer, commercial and technical applications. * * Ceramic magnets have so many practical uses including; craft projects, refrigerator magnets, badge holders, latches, display boards, loudspeakers, security systems, motors, generators & alternators, lifting magnets, brakes, clamps, switches & relays, sweeper magnets, science projects, toys, games, motors, magnetic couplings, POP displays, advertising giveaways, promotional items, novelties & much more. | Made with powerful ceramic material, also known as ferrite | Ideal for crafters, teachers and do-it-yourselfers | Magnet Grade of 1 - for every day use | Economically priced while offering a lot of magnetic strength | Very resistant to corrosion | Excellent in high temperatures, up to 400Â ° F | Multi-poled featuring more pounds of pull than standard magnet | Ceramic magnet alloys offer good resistance to external demagnetization fields | Perfect for home, school, office and shop | Great for making lightweight projects magnetic