• Water-soluble universal non-permanent marker for overhead transparencies and various surfaces. • Fine tip (F) with a line width of approximately 0,6 mm for clear labeling. • Fast-drying ink prevents smudging and allows for efficient work. • Easily wiped off with a damp cloth on non-porous surfaces. • Compatible with materials such as glass, metal, plastic, transparencies, and paper. • Airplane Safe system equalizes pressure to prevent ink leakage during pressure changes. • Highly durable polypropylene barrel and cap for a long service life. • Refillable design compatible with the 487 15 charging station.