Master Magnetics Magnetic Block, 7/8 In. x 1/4 In. is a versatile and practical solution for various do-it-yourself projects and magnet-making endeavors. These rectangular ceramic blocks are designed to be easily glued to the back of light to medium-weight items, allowing you to them into magnets. Once attached, you can conveniently place these magnets on refrigerators, lockers, whiteboards, or any ferrous metal surface, adding functionality and organization to your home, school, or office. Made from hard ceramic ferrite magnets composed of iron oxide and barium or strontium carbonate, these blocks reliable holding strength for their price, making them a popular choice for a wide range of applications. Whether you need to display notes, photos, or lightweight objects, these magnetic blocks provide an and effective solution. Model Number: 07001