The 850 rectangle nib permanent marker is ideal for writing, marking and labeling on almost all materials, including metal, plastic and glass. The refillable ink is waterproof and wear-resistant on almost all surfaces, and the chisel nib has a stroke width of 5-15mm.Details:Available in multiple colorsRectangle chisel nib (5-15mm width)High-quality aluminum barrel offers a sturdy, comfortable gripLow-odor ink has no added toluene/xyleneCap can be stored on the end of the barrel to prevent risk of losing itMade in Germany