pentel super hi-polymer mechanical pencil lead refills, in assorted sizes

One of the strongest and highest quality series of leads on the market. Formulated under an exclusive process to improve strength yet retain blackness and smoothness. These HB graphite leads require only light pressure to create dark, clean lines. Super Hi-Polymer formula reduces the risk of lead breakage and consequently saves lead.  Twelve leads per tube except where noted. Perfect refill for your favorite mechanical pencil.