100pcs 3 x 0.9mm magic magnet magnetic DIY Super Strong Magnets Circular Disc Magnets are made from Magnet material with strong magnetic performances Smaller magnets are often used for jewelry clasps, magnetic earrings, fridge magnets, model train connectors, wargaming models, motors and etc. Applications: Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, meter, sound meter, a reed switch, sensors Electrical field: VCM, CD / DVD-ROM, generators, motors, servo motors, micro-motors, motors, vibration motors. Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery Healthcare: MRI scanners, medical equipment, magnetic health products and so on Other industries: magnetized Wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, doors and windows magnetic, magnetic luggage, leather magnetic toys, magnetic tools, gifts and packaging Type: Magnetic Ball Material: Magnet Color: Silver Age Range: >14 years old Quantity: 100pcs Dimensions: 3 x 0.9mm (each) Size: 3 x 3 x 45 mm / 0.12 x 0.12 x 1.77 inch Weight: 6 g / 0.21 oz Note: Small part, not suitable for children under 14 years old