Mars heard that a book is going to be published!!!

Let the work shine ~ ~

I also wanted to make a blackboard eraser to remove chalk dust before.
Because the original blackboard eraser is really too bad to use
Dust floating everywhere is really bad for health.
But because I don't know whether this design is necessary or not
Because in fact, many classrooms are multimedia classrooms now, the use of blackboards is less and less, and many teachers do not write on the blackboard,
So the last thought fell through
However, seeing someone design it, the effect is still good.

It's very sweet to have details of the original works

Plus the general elephant ~ ~ ~ Kaisen ~ ~ ~

Mark pen practical ah ha ha ha

The hot water kettle development is really great.

I would like to see the winning works of the next period.

Not working ~

The last prize pen looked good and greedy.

That's great!!!

Idea, yes, many idea awards

The work was sent out... and I was afraid of blinding you.

I 've seen this nightlight before!!! Pu Xiang recommended it!!

Ricoco .... Is Rococo's long-lost brother?