2. Using high-performance permanent magnetic materials, with strong magnetic force, unique circuit design , remanence almost zero. 

3. High safety factor, max pull off force is 3.5 times of rated lifting capacity.  

4. Handle switches with safety button, easy for Single-hand operation, more safety and convenience. 

5. "V" style design at the bottom of lifter, can lift round steel and flat steel plate.  

6. Without electricity,magnetic force permanent, more safety in using, and can be operated in the field.