Every year, pencils not fully utilized add up to great waste of resources. We have therefore designed "LOOP PENCIL" to improve this situation. LOOP PENCIL is a completely new combination pencil. It can freely combine different forms through the "one turn, one change" method, so as to achieve the effect of Min.pencil +Min.pencil > MAX.pencil. LOOP PENCIL adopts the design method of thread and the design concept of LOOP (loop). The small loop of design drives the large loop of resources, which is undoubtedly a more ideal solution.