Pica Classic 534 Medium Nib Permanent Pen, Black markings that instantly dry on almost all surfaces, ensuring your notes and labels stay clear and legible. This pen is instantly water resistant and indelible, making it for long-lasting use in various environments. It features a medium nib designed to create contrasting markings for easy visibility. Additionally, it is from toluene and xylene, making it a safer choice for your workspace. Model Number: 534/46/SB