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No Pay No Gain / Blackboard eraser plug in

No Pay No Gain
No Pay No Gain

When the teacher has finished a lesson, it will be very tired if he need to erase the entire blackboard by using a small eraser on his own. But, by using this handy tool, he can erase the whole blackboard with just one push. If he just want to erase a small area, he can simply take an eraser down and use it, simple as it sounds.

Extra Kit:
Also, he can call a student who is volunteer to erase the blackboard for him. When the eraser be pushed to another side, the magnet in the eraser and the candy can will attract to each other and force the candy can to be opened. Then, the teacher can tell the story of “No Pay No Gain” to the students.


Ming Chuan University

Ming Chuan University
Taoyuan County, Taiwan


Ming Chuan University

Ming Chuan University
Taoyuan County, Taiwan

Chen-Jie Yu