This black gel roller is popular with left-handers and prolific writers because the ink dries quickly. Stains are a thing of the past and the rubber grip zone provides extra support. Create smooth lines of 0.35mm with the Pentel Energel BL77 rollerball pen black. This item comes from the Pentel Recycology series and consists of 50% recycled material. This pack contains 12 x Pentel Energel BL77 black rollerball pens.