Twin wire notebook with perforated pages that feature day and month headers to help you stay on track. 160 Lined, acid-free pages that takes ink and pencil beautifully. DesignWorks Ink was founded in 2014 by a group of dedicated and talented individuals that are as passionate about journals as they are great design. Their mission is to create products that are beautifully designed and also provide exceptional quality. They proudly use acid-free papers and soy based ink in all of their products. Think Big. Write On!