What is/are in the package? Dell 31/32/33/34XL (4xBlack+2xCyan+2xYellow+2xMagenta) How many pages does this print up to? Black Up to 600 Pages per cartridge; Color Up to 450 Pages per cartridge at 5% Coverage How do you install the toner cartridge? ?Remove the orange cover, if applicable ?Pull out the plastic tag (where you see the orange ring) which is on the side of the cartridge, if applicable ?Insert into the printer ?Enjoy printing! What are the compatible printers? Dell V525W, V725W Printer What is the warranty? Green Toner Supply offers 1-Year money back warranty on defective toner cartridges What is the shelf life? Suggested shelf life: Up to 36 months Please store the unused/unopened toner cartridges in a dry and cool place. Avoid sun exposure Have a question or a problem? Please do not hesitate to contact us, our Customer Services Team will usually response your email or message within 1-2 business days.