REmechanical pencil / pencil

We often say that less is more. You must have experienceed that
borrow the refills from your partner,refill is always running out
when we are writing,while we always forget take lead box.therefore,
our group members discuss ，we design the Re.mechanical pencil
that the mechanical pencil combined with the pencil’s refill. In a certain
sense,it can realize the transportation cost savings and make good for
environment