The Digital Field Book has a tough black Fabrikoid cover that will withstand the rigors of the field. Pages are printed on Rite in the Rain all-weather paper. Each sheet is pre-printed with the Adapx digital dot pattern for use in the capturx digital data collection solution. What you write in the Field Book with the Penx digital pen (available at www.adapx.com) is transferred into your computer seamlessly via Microsoft OneNote.