Based off of our best-selling 12-Pen Case, we have fine tuned and redesigned this pen case to fit your collection of smaller pens. From Kaweco's to Sailor Pro Gear Slim, this case can carry them all. With a center spine of 3.5cm, your pens will have enough breathing room to live comfortably. Our trademarked leather Pull Tag™Penholder allows you to securely fasten pens of different sizes and diameters. Friction of the leather on leather pull tag ensures minimal movement and bumping of pens, avoiding scratches. The leather divider doubles to carry 6 cards, or ink swatches.