1/3 LEAD / stationery

Automatic pencil lead will consume by writing. The lead will be shorter when more write, until the lead is not long enough to write. But the user is not easy to detect the status of the lead. Until the lead cannot be write, and knowing it would be refill.

We put the conspicuous color on the surface of the 1/3 ends of lead. It can remind the user quickly refill when the lead is insufficient, and avoid the dilemma of cannot write due to forget to refill.