Blackboard eraser

The utility model relates to a blackboard eraser, include strutting arrangement and erase the device, the bottom plate of strutting arrangement for being equipped with at least one bar hole, said wipe the device goes into the bar hole including the card removal permanent magnet and setting up in the control permanent magnet of bar hole one end, the control permanent magnet openly is equipped with the handle, moves the permanent magnet back and is equipped with the felt the utility model discloses simple structure, design benefit, can convenient and fast with blackboard eraser clean, labour saving and time saving need not the operator and walks up and down, avoids the chalk dust to be stained with on hand safety and sanitation simultaneously