Similar to its mechanical pencil counterpart, the Pilot Rexgrip (Pen) grants users matchless comfort. The retractable oil-based ballpoint pen is made from 77.7% of recycled materials, with a highly-resistant tungsten carbide ball that is extremely durable. Refillable with RFNSGG refills and available in three nib sizes: 0.5mm, 0.7mm, 1.0mm.