This Sea Gems Mackintosh ball pen has a lattice tube design that shows off its brass and stainless steel materials. The pen has silver coloured squares and rectangles that create a unique and creative pattern. The Sea Gems logo is also engraved in a Italic Zapf chancery text on the clip, including a nice smooth operating twist mechanism. The pen also comes included with a letter knife with the same style as the pen and a smooth stainless steel blade. This Ballpoint Pen is part of the Sea Gems Collection. The pens have a wide variety of designs and materials that creates a very unique style, which makes the pen stand out and is not only good to write with but very nice to look at and appreciate the art. Each pen also comes with its own case.