Self-adhesive pen loop: self-adhesive design with strong adhesive on the back allows you to easily attach these pen holders to any clean and smooth surface and keep them stable. Perfect for journals, notebooks, planners, calendars and clip on these books. High Quality PU LeatherMade of high quality PU leather, which provides a comfortable touch feeling. Pen holder with elastic band, the elastic band is adjustable, it is compatible with pens and pencils of different sizes. Anti-loss: Prevent pen loss and make your life easier. It is very practical indoors and outdoors Pen Loop SetYou will receive 4 sticky notebook pen holders, enough for your daily replacement and tuning. Widely used: These pen holders are the perfect partner for your laptop to ensure you have a pen at hand and your book is always together. Very suitable for doctors, nurses, teachers, students, engineers, pilots, lawyers, etc. Make your work and everyday life more comfortable, efficient and tidy