I have one of these on my desk and people can't stop talking about it! This is a Gatling gun pen that holds 6 black gel pens (included) in the form of a barrel. When you turn the handle the barrel rotates just like the real thing! This is a great conversation starter and is sure to make your coworkers jealous. The pen is a great gift for the gun enthusiast in your life, a birthday gift or for father's day. I guess the old saying, "the pen is mightier then the sword" holds true. This measures approximately 12" long and is made from plastic. This pen is sold by Cardstalked which is a veteran owned company. A portion of each pen sold is donated to the St. Jude's Children Hospital. Note-Ammunition is only for photo purposes and no ammunition is included. This item does not fire and is only a novelty pen holder.