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The TWSBI Diamond 580 piston ink-filling system uses only bottled ink and the clear body with pink colored aluminum grip and piston, allows the user to view the level of ink remaining in the pen at all times. The Diamond 580 fountain pen has all detachable parts, as TWSBI felt that it was important to allow the user to disassemble and reassemble the pen and completely experience the traditional aspects of owning and using a fountain pen.
10 E. College Ave. Suite 112A
Appleton, WI 54911
Phone: 920-997-8220 | Mon-Fri 9:30-5:30 CST | Sat 10:00-2:00 CST