Pilot Acroball 0.7mm Ballpoint Pens BLACK (BAB-15M-BB) Features: Advanced oil-based ink for a soft and fluid writing experience An ergonomic pen with a rubber grip to ensure better control and precise writing Refillable with Acroball refill BRFV-10F-B Tip size: FINE 0.7mm Reliable and hard-wearing tungsten-carbide ball 10x BLACK INK 0.7mm