Magnet Set Black [65 Pieces Extra Strong] Heat and Corrosion Resistant Flexible Magnets 17.6 mm x 4.9 Durable for Indoor Outdoor Use Ideal Home, School, Office Workshop

SPECIFICATIONS & QUANTITY: Comprehensive set of 65 high-grade ferrite magnets. Dimensions: 17.6 mm diameter x 4.9 mm thickness. Precision-cut circular geometry with a flat surface for maximum contact area. Ideal for industrial, office, and educational applications requiring consistent magnetic performance. MATERIAL & THERMAL STABILITY: Manufactured from Y30 grade ceramic ferrite. Unlike neodymium magnets, these ceramic discs are exceptionally heat-resistant (up to 250°C) and corrosion-proof. No additional coating required, making them ideal for long-term outdoor use or high-temperature environments in workshops. PERFORMANCE & DURABILITY: Engineered for a reliable, permanent magnetic field that does not demagnetize over time. The material is chemically stable and resistant to most solvents and citric acids. The "Black Magnet" finish ensures no metallic oxidation, preventing stains on whiteboards or documents. VERSATILITY & APPLICATION: Multi-purpose utility for magnetic notice boards, refrigerators, and steel surfaces. Technical application in DIY projects, sensor technology, or as heavy-duty office supplies. Strong enough to hold multiple DIN A4 sheets or lightweight tools without slipping on vertical steel planes. SAFETY & SURFACE PROTECTION: Smooth, rounded edges prevent scratching of delicate surfaces. Non-toxic and structurally stable, these magnets are suitable for school environments and professional craft use. Supplied in a secure pack to ensure the ceramic material remains intact during transport and storage.