Anti-lost design Our pen holder is made of PU leather case, stainless steel and copper clips that can be fixed to your notebook and hold the pen tightly. When they are installed on the notebook, they will not fall off easily, keeping your pens organized and no more losing pens. Easy to carry: These pen holders are perfect for your notebooks, lightweight and easy to carry around, so there is always a pen or pencil for you to use with your notebook or journal, no need to look for anything to write with everyone around you, save your time and energy. Easy to install just place the pen clip on your notebook and hold the pen firmly. The notebook pen clip is firmly fixed, has strong clamping force, is easy to carry and is light in weight. The widely used vintage style clip is mainly used to secure pens to notebooks, appointment books, scrapbooks, diaries, planners and calendars. Suitable for students, teachers, postmen, doctors, nurses and other occupations. Pen Holder Set You will receive 4 pen metal ring holders, the quantity is enough for daily use or sharing with others; the PU leather part comes in 2 colors to match your different styles of notebooks.