Metal clip tightly clamp to notebook, pocket, wallet and other places where you want, no need to be afraid of falling.Simple design combined with high quality material. High Quality:Consisted of chrome stainless steel clip and spring pen holder.Sturdy and will clip without marking your book surface.Can be easily removed and reused. Practical and Portable:Suitable for office, business, trip, study, hospital, shopping mall, gift,etc.Easy to carry.The circle expands to hold a variety of diameters snugly fits most kinds of pens, pencils etc. Can move between any number of notebooks, so the stick-on type of pen holder means a commitment that your don't want to make. Being able to move these around is just exactly what your need. Package included:2pcs Horizontally Hole Spring Pen Holder+2pcs Vertically Hole Spring Pen Holder.Dimension:40mmx11mm.