return by qian yiran from germany

There are millions of trees been cut every year for making pencils. But the speed people plant trees is not as fast as they cutting trees.

This design put a seed in the end of a pencil, when people use the pencil up, then they can get the seed from the black container. they just need to put this in the soil, then there will be tree grow up in the futuer to return the wood for this pencil.

It not only make more trees in our life,but alos educate children to give back the trees to the nature, to keep the nature balance.