How much does this cost to the nearest dollar?

Rite In The Rain 37R Rite in the Rain 37R All-Weather Pen Refill Cartridge; Black Ink
Refill cartridges can be mixed and matched—each color is compatible with the pen body. Refill your all-weather pen instead of replacing easily replace ink cartridges change your black pen's spent cartridge. Color black Description black ink refill cartridge Length (inchshort) 3.5 Number of items 1 Brand Rite in the Rain, Ink Color Black, Style Stick, Point Type Fine, Weight 0.01 Ounces, Dimensions 6.69 x 2.2 x 0.39 inches; 0.01 Ounces, model number 37R, Available August 19, 2013, Manufacturer COLE-P

Price is $19.00
Price: $19.39