NUSIGN Distinctive Nib Rotatable Ballpoint Pen 0.5mm black ink with Replaceable Refill

Clockwise refill out. Anti-clockwise withdraw refill. Using high-precision tungsten carbide balls. Seiko nib, stable ink output, wear-resistant and durable. Low center of gravity, stable writing. Metal parts to create extraordinary texture. Precision connectors are made of metal to ensure that the center of gravity is in the right position, writing stable and not easy to fatigue. Clockwise refill out. Anti-clockwise withdraw refill. Using high-precision tungsten carbide balls. Seiko nib, stable ink output, wear-resistant and durable. Low center of gravity, stable writing. Metal parts to create extraordinary texture. Precision connectors are made of metal to ensure that the center of gravity is in the right position, writing stable and not easy to fatigue