10PCs 18mm x 4mm Refrigerator magnets
Use:
1.speakers, receivers, microphones, alarms, stage sounds, car stereos, etc.
2.Electronic appliances: Magnetic circuit vacuum circuit breakers, magnetic holding relays, power met
3.Service motors, micro-motors, motors, vibration motors, etc.
4.Mechanical equipment: Magnetic separation, magnetic separator, magnetic suspension, magnetic machine
5.Other industries: magnetized wax guards, pipe cleaners, magnetic clamps, automatic mahjong machines,

Control the force by hands to avoid collision when the magnets colliding with each other, which may result in breaking