![Lishuai Neodymium Welding Magnet Holder On/off Switch Magnetic Clamp/magnet Square 45 90 Degree Small Size Strong Single Switch - Magnetic Materials - AliExpress Lishuai Neodymium Welding Magnet Holder On/off Switch Magnetic Clamp/magnet Square 45 90 Degree Small Size Strong Single Switch - Magnetic Materials - AliExpress](https://ae01.alicdn.com/kf/S2a31fc6c9f6e42ddb0394304e9f03a58c/LISHUAI-Neodymium-Welding-Magnet-Holder-On-Off-Switch-Magnetic-Clamp-Magnet-Square-45-90-Degree-Small.jpg)
Lishuai Neodymium Welding Magnet Holder On/off Switch Magnetic Clamp/magnet Square 45 90 Degree Small Size Strong Single Switch - Magnetic Materials - AliExpress
Is there any simple, low-energy way to make a permanent magnet able to turn 'on and off' (similar to an electromagnet)? - Quora
![Adjust-O Magnet Square, Heavy Duty, On/Off Switches, Pull Force: 65 lbs, 4-3/8" x 3-3/4" x 1-1/8", MSA46-HD, Strong Hand Tools: Magnetic Sweepers: Amazon.com: Industrial & Scientific Adjust-O Magnet Square, Heavy Duty, On/Off Switches, Pull Force: 65 lbs, 4-3/8" x 3-3/4" x 1-1/8", MSA46-HD, Strong Hand Tools: Magnetic Sweepers: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/81vtCwAaJwL.jpg)
Adjust-O Magnet Square, Heavy Duty, On/Off Switches, Pull Force: 65 lbs, 4-3/8" x 3-3/4" x 1-1/8", MSA46-HD, Strong Hand Tools: Magnetic Sweepers: Amazon.com: Industrial & Scientific
![Adjust-O Magnetic Square, On/Off Switch, Max Pull Force: 65 lbs (30kg), 45° & 90° Angle, 4-3/8 x 3-3/4 x 1″, Patented Design, MSA45, Strong Hand Tools - - Amazon.com Adjust-O Magnetic Square, On/Off Switch, Max Pull Force: 65 lbs (30kg), 45° & 90° Angle, 4-3/8 x 3-3/4 x 1″, Patented Design, MSA45, Strong Hand Tools - - Amazon.com](https://m.media-amazon.com/images/I/81Rvkax5eAL.jpg)