The entire lead of Akio Hayakawa’s Easy Pencil can be effectively used. per the designer “Normally, the lead of the pencil is filled in the full of its length… itâs impossible to use the lead from end to end. On ‘easy pencil’, 60mm shorter lead is embedded in the pencil. That creates the possibility to use the lead to the end. New pencil is treated as expended the all lead, without hesitation.” Hayakawa claims the ‘easy pencil’ can be manufactured simply by using shorter lead, without any changes to current methods of manufacture.