Pentel EnerGel XM BL77 Retractable Liquid Gel Ink Pen 0.7mm Nib Primary Set of 5
BL77 Energel XM. The BL77 pens are made from 54% recycled materials and are refillable with the LR7 refill. Gel Ink Rollerball. This set contains five pens withblack,blue,red,greenand yellow ink.