Permanent universal marker, medium line width (M) approximately 1.0 mm. For writing on transparencies (OHP), paper, plastic, glass, metal and almost all other materials. The marker's vibrantly colored ink is quick-drying, water-proof and highly light resistant. The cap-off ink does not run dry even if the cap is removed for 2-3 days. It has a low odor and is free of toluol and xylol. Slim pocket model with practical clip cap.