Laser Tek Services &reg; 4 Pack Toner Refill with chips for HP Q6470A Q7581A Q7582A Q7583A 503A Color LaserJet CP3505 3505dn Kit comes with 4 Bottles, Easy Instructions, Funnel Cap, Latex Gloves if needed, and reset Chips Ships Directly from our warehouse within 1 business day! Each Bottle is good for at least the same page yield as a new cartridge, usually a bit more. Great phone support with Laser Tek Services, not usually needed, but if you need it we are there for you. Save big each time you refill and GO GREEN!!!