STABILO Write-4-all. Permanent markers for anyone who writes on CDs and DVDs in the office or at home, and for professionals such as carpenters, masons, or gardeners who need to write under extreme conditions and on unusual surfaces. The plastic tip is very durable and therefore writes clearly, even on hard surfaces. This has been tested on more than 1,000 materials, such as glass, plastic, photos, CDs, DVDs, ceramics, foil, and metal. It even withstands extreme conditions such as cold, heat, or rain. Therefore, the STABILO Write-4-all is also suitable for use in freezers or greenhouses. The ink dries quickly, is light- and frost-resistant, and waterproof. The STABILO Write-4-all is available in three line thicknesses: superfine, fine, and medium.