The Boardmaker TZ1 can be used for both flipcharts and whiteboards. A package of Boardmaker contains 10 Boardmaker TZ1 markers in a selected color. If you rely on a flipchart for your presentations or lectures, the Boardmaker TZ1 is an excellent choice, as the package includes 10 markers in a color of your choice. Of course, the Boardmaker TZ1 can also be used to write on whiteboards. The Boardmaker TZ1 features an aluminum barrel, and the ink is alcohol-based and low-odor, making it easy to wipe off from all whiteboard surfaces. The line width is approximately 1.5 to 3.0 mm. The included cap-off ink in the markers protects against quick drying. Each marker measures 138 mm in length and has a diameter of 14 mm. Suitable for whiteboards and flipcharts, easily wipeable from all whiteboard surfaces, with alcohol-based, low-odor ink, aluminum barrel, length 138 mm, diameter 14 mm, line width approx. 1.5 - 3.0 mm, cap-off ink protects against quick drying, 10 pieces = 1 package.