Dual ink cartridge - HP 45 black / 23 tri-color. Sells for over $60. I no longer have my color injet printer (HP 720) and this is surplus to my needs. This fits several HP printers in the 700 and 800 series as well as others. I meant to scan the side panel to show which printers it would work in. But I guess you know if your printer takes these numbers. Will sell for $7.50 shipped (that's $2 over the $5.50 shipping cost). Post here or email me if you can use this ink cartridge.

Esther