All in one bookmark and pen with eraser. Ultra slim design, durable clip, and quality writing tip. A unique product and a best-seller in the making! All in one pen bookmark: your eyes are not deceiving you… this really is a combined bookmark, pen and eraser. The pen bookmark is perfect for keeping your page, writing notes in books and journals (and erasing mistakes!). Portable & lightweight! Product size: 15 cm x 1.5 cm x 4 mm