2 HP No. 45 Black Inkjet Print Cartridges
The cartridge is ideal for frequent and large-volume printer users! Convenient, cost-effective choice for the frequent printer user. Lower cost per page, this is a new in the box fully guaranteed, remanufactured cartridge. This cartridge fits the following printers:

Specifications
Usable ink: 42 ml's Each
Page count: 833 pages @ 5% density

WHAT MAKES IT HIGH YIELD?
The short answer is more ink. The manufacturer fills most cartridges only about half way. They want to sell more cartridges. Some have a more expensive high capacity version. In this case we fill the cartridges all the way up. This is what we do all the time. All our cartridges are filled to maximum capacity, which should yield over 50% more print than a standard cartridge. This makes our High Yield cartridges a much better value.