Fiber-tipped sign pen offers a durable porous tip that is excellent for general writing, drawing, doodling and adding character to any signature. Radiant, water-based ink is perfect for anytime you put ink to paper. Ideal for use in the home or studio by artists, designers and anyone who enjoys writing or drawing. Snap-fit cap prevents the firm, durable tip from drying out when not in use. Nonrefillable Sign Pens are made with a high percentage of recycled content and certified AP nontoxic by ACMI.