How much does this cost to the nearest dollar?

TWSBI Diamond 580 Fountain Pen nib EF
Fountain Pen The Diamond 580 comes with a benchmark ink-filling mechanism and has all detachable parts We 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. Diamond 580, a classic fountain pen with a piston ink-filling system. FREE SHIPPING Manufacturer TWSBI, Brand TWSBI, Weight 1.76 ounces, Dimensions 7.56 x 2.6 x 1.57 inches, model number Is Discontinued No, Color Demonstrator, Clear, Closure Snap, s 1, Size 1 Count (Pack of 1), Point Type Extra Fine, Manufacturer Part Rank Office Products Fountain Pens 584

Price is $55.00
Price: $55