Precisely machined for a sleek futuristic look. Aircraft aluminum body. DNA catcher at the tip. This is the perfect companion for your everyday carry. The pen has a convenient carrying clip, and feels great in the hand. You can use the 3.5inch Fisher Space Pen Refill in it which has an ultra-hard tungsten carbide ball. However, the cartridges per pen needs to be purchased separately. The SL1 tactical pens are available in three amazing colors of black, grey and red which will definitely be an amazing stationery for work. These pens have that classic and edgy appearance that is so required to complement your professional style. The design is sleek, stylish and will fit in your pocket or pen stand pretty easily. A perfect gift for those who have a thing for a classic pen collection.