Excellent Design: writing,comfortable grip.The comfortable hollow hexagonal prism design makes the pen close to the skin, conforms to the ergonomic curve, and is a good for writing. Bolt also help you reduce stress and increase life . Strong Construction:This bolt pen is made of solid brass,precise cutting technology is adopted, which is durable and not easy to break. It is meticulously made by hand, showing more retro and elegant.The length of the bolt pen is 13cm/5.3inch,easy to hold and use, reasonable polishing, warm and without cutting hands.Also with key ring, easy to carry when need. Multi-Scene Application:Due to the good hardness and corrosion resistance of brass,this bolt pen can be used in harsh environments while travelling or working.Due to the elegant and retro appearance of this pen,it is also a great gift for Business,Christmas, 's Day, Father's Day and etc,send to students, teachers, lover and pen collectors. Colour:Photo Color Material:Copper type: B Package Contents: 1X solid brass pen(1 refill included) 2X extra refills packaged in present box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.