HP 21 & 22 INK COMBO has the below features:

• Print laser-quality text documents and sharp images
• Reliable, affordable and effective printing for every day.
• It Produces photo-quality prints that resist fading
• It also  Produces crisp black and colour text.
• It produces more than 180 pages (colour & black), though, it depends on printer and specific use.
• The print quality is not just fantastic but wonderful.
• It is economical in printing
• Output: Color and Black
• Output Color: Cyan, magenta, yellow
• Printer Technology: Inkjet
• Product Type: Inkjet cartridges for printing
• Compatible with HP Deskjet 3910, Deskjet 3930, Deskjet 3940, Printer/Scanner/Copier 1410 and other HP printers that uses ink cartridges.
• It is rugged (can print under uncomfortable situation)

NOTE: This package include both the hp 21 (Black cartrigde) & hp 22 (colour Cartridge)