Features Bent spring steel covers the tip when not in use; flip it around to snap into writing position Detachable stainless steel clip anchors to a book, pocket, or shirt; remove with a flathead screwdriver to go clipless Only 3.5mm thick — thin enough to double as a bookmark Houses a Pilot Hi-Tec-C Coleto cartridge, engineered not to dry out or leak Precision machined for durability and longevity Specs Material: Grade 5 titanium Dimensions: 108 x 15mm Weight: 17.6g Ink: Pilot Hi-Tec-C Coleto cartridge (included) A flat, durable bookmark pen built for everyday carry in a pocket or tucked into a notebook. Precision machined to house a high-quality cartridge that never dries or leaks, so it's ready whenever you need it. CW&T covers manufacturing defects with a full refund or replacement.