IDEAL FOR CREATIVE APPLICATIONS. Our neodymium magnets are commonly used in creative applications such as models and theatre design, clothes making, furniture making, exhibitions, and packaging. USEFUL FOR MANUFACTURING & ENGINEERING. Neodymium magnets have many uses in engineering and manufacturing where maximum strength is required. RESISTANT TO DEMAGNETISATION. Excellent resistance to demagnetisation. RUBBER COATING. The rubber coating increases friction, softens impacts, and prevents marking RARE EARTH MAGNET. Each magnet can support a steel weight of up to 5kg vertically from the magnetic face when in flush contact with a mild steel surface. SPECIFICATIONS. 40mm dia x 5mm thick.