Durability is crucial in notebooks, which is why we only use quality paper that can take ball-point pen and ink without difficulty and whose high opacity means that what you have already written does not show through the pages. The way in which it is bound means there is no difficulty pressing down on the Turell, and it always lies flat which facilitates writing. Its stitching also prevents individual pages from falling out. The distinctive stainless steel clip is not simply an accessory: it protects the Turell from damage and can also be used as a pen holder.