An earth-friendlier pen, the BeGreen G-knock pen is made from 81.5% recycled materials, and can be refilled, so you can use this pen over and over again. Dynamic gel ink formula gives you smooth, swift writing. Retractable point is smooth writing and smear-proof. Use Pilot G2 Fine Gel Ink refills. Meets ISO 14001 and 14021 Standards. Available in Black, Blue, Red. Pilot Pen is proud to be part of the earth-friendly movement - providing consumers with a wide selection of responsible choices that can be part of their everyday commitment to make our planet cleaner and healthier. Pilot BeGreen - Positive with the Planet.