qui Pencil Case I was concerned about the clips and knurling on metal mechanical pencils like the Staedtler 925-25 and rotring 600 scratching other pens when stored in a pen case. Even if I wanted to store my precious pens in a pen case to prevent scratches, there were only pen cases for thick-barreled pens, and using a thick-barreled pen case would take up too much space in my pen case. This pen case was developed to store such metal, thin-barreled pens. It's sized to fit thin-barreled pens like the Caran d'Ache Ecridor and 849, and FIX pencil. You can use it as a pen case by inserting the flap (tongue) to store the entire pen, or fold the flap inward to use it as a pen sleeve for quick access. Please use it according to your preference. This pen case is also useful when carrying only one pen in your bag or pocket. Since Pueblo is difficult to use with wooden shafts, we are using Buttero this time, which allows you to enjoy aging. Compatible shaft diameter: Approximately Φ8.5 to 9 mm (there are slight individual differences) *Because this product uses natural leather, the color and texture may vary slightly from product to product. Also, please enjoy the characteristics of leather products, such as blood vessel marks, small scratches, and color unevenness. *The pens in the images are props for photography and are not included with this product. Please check the condition in the photos.