The Parker Schneider Eco 725 blue M ballpoint pen refill (2 units) provides a universal G2 format refill manufactured ecologically with recycled materials. The pack includes 2 medium (M) tip refills with intense and smooth blue writing, compatible with most retractable ballpoint pens on the market. The regulated ink flow prevents smudging and ensures thousands of meters of clean writing. An excellent option for personal use at home, university, and work.