How much does this cost to the nearest dollar?

Postageink.com PMIC10 Non-OEM Ink Cartridge Replacement Compatible with PostBase Mini Postage Meters
This non-OEM ink cartridge replaces original FP PMIC10 ink cartridges. It is compatible with PostBase Mini mailing machines. Cartridge contains USPS-Approved red fluorescent ink. Single Ink Cartridge in Fluorescent Red Ink Replaces FP PMIC10 Ink Cartridge Compatible with Postbase Mini NOT compatible with Postbase 20, 30, 45, 65, 85 Compatible with Postbase Mini Dimensions 3.6 x 1.5 x 4.5 inches, Weight 1.6 ounces, model number Rank Office Products Inkjet Printer Ink Cartridges 7734, Is Discontinued No, Available January 29, 2016,

Price is $51.00
Price: $51