The pen features twist mechanism with smooth and sturdy damping structure, and replaceable German-made SCHMIDT Refill P900M which compatible with Parker Style Refill. The design lowers the center of mass to expand the area of grip for enhanced comfort and stability of writing. 

Care and refill: Avoid scratching the anodized surface with sharp objects. If wet, gently wipe the pen dry. Unscrew the grip section to replace the SCHMIDT P900M refill.