Description The TWSBI Diamond 580AL fountain pen in Iceberg Blue features a clear acrylic body and clear cap and turning knob, light metallic blue trim, a brushed aluminum grip section, as well as a piston ink-filling system, smooth-writing steel nib and a screw-on cap. The TWSBI Diamond 580AL piston ink-filling system uses only bottled ink and the clear body allows the user to view the level of ink remaining in the pen at all times. The pen cap has an inner cap liner that maintains a thorough seal when the pen is not in use. The traditional mechanism of the fountain pen, combined with a modern industrial design, embodies both the past and the present. We offer Free Shipping on all orders over $59 for US customers, and for orders over $250 for our Canadian customers. TWSBI believes that it is important to allow the user to disassemble and reassemble the pen, in order to completely experience the traditional aspects of owning and using a fountain pen. The TWSBI pen packaging includes a wrench and silicone grease. ** Please note that these accessories are not intended to be used immediately, as they are better used for long-term care and maintenance. In addition, please use extra care if you choose to disassemble the pen, as breakage or cracking could occur if done incorrectly.