Coated with white enamel paint, these hooks are versatile for shop, office, school and home. Hang tools, utensils, accessories and more. Hold and organize cables, tools, wires, and more. 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 and alternators, lifting magnets, brakes, clamps, switches and relays, sweeper magnets, science projects, toys, games, motors, magnetic couplings, POP displays, advertising giveaways, promotional items, novelties and much more.