100PCS/Set 8mmx3mm Round Magnets Heavy Duty Powerful NdFeB Hole Magnets for Fridge, Crafts, Office, Tool Storage

• Magnetization direction: N/S pole on both ends of the plane
• Circular with hole magnets, strong suction
• Can be used in industrial production and for personal creative design
• These magnets are resistant to corrosion, oxidation, and demagnetization and provide a smooth finished surface
• Great for DIY projects such as ammeter, instrument, electric motor, automatic control, microwave device, radar, and medical equipment 
• Wide application: electro-acoustic: speaker, receiver, mike, an alarm device, stage, and car audio device, etc
• Also suitable for electronics: permanent magnet vacuum circuit breaker, magnetic latching relay, watt-hour meter, water meter, reed, sensor, etc
• Electrical machines: VCM, generators, motors, CD/DVD ROM, electric motor, servo motor, micro motor, motor, vibration motor, etc
• Mechanical equipment: magnetic separation, magnetic separator, magnetic machines, etc
• Health care: nuclear magnetic resonance instrument, medical equipment, magnetic therapy health care products, etc
• Other industries: magnetization paraffin, pipeline cleaner, magnetic clamp, automatic mahjong machine, magnetic locks, bags, leather goods, toys, craft gifts, etc

Specification: 

• Material: NdFeB 
• Quantity: 100 pieces 
• Color: Silver 
• Size: 8*3mm
• Working temperature: maximum 80°C