Have you sent in a JetPak already? Click Here to track it JETPak 12 Pak--Recycle Color & Black Cartridges-Mix and Match ! (Send In 12 Cartridges At Once!) Jetpak Mailers offer an easy and low cost way for you to recycle your empty inkjet cartridges without the hassle of getting ink all over yourself. Using the Jetpaks is easy- place your empty inkjet cartridge in the convenient mailer. It is preaddressed-all you do is fill out the the return label. And the price of every Jetpak Mailer includes postage. With the 12 Pak Your can mix and match 12 cartridges, both color and black cartridges you want to recycle. Jetpak Mailers are the easiest way to recycle. Most Hewlett Packard, Lexmark, Sharp, Okidata, Xerox inkjet cartridges can be recycled with the JetPak Here's How the Jetpaks Work - It's Easy as 1-2-3 1 Order the 12Pak Mailer. Place your empty cartridges in the mailer. Complete the return address label and pop it in the mail. No postage is needed because the JetPak has the postage prepaid! You can recycle the most popular inkjet cartridges from Hewlett Packard, Lexmark, Sharp, & Xerox with these mailers 2 When the mailer is received, your empty cartridges are cleaned and filled with the finest inks made especially for your cartridge style. Each cartridges is tested and returned directly to the name on the return address label. And in most cases, this happens within 24 hours of the time it was  received . 3 When you receive the recycled cartridge it is ready to use. It will print as many copies as a new one-maybe more. It's easy and hassle free-GUARANTEED!.