This is a compatible drum unit that has never been opened or used, seals still intact.This drum unit will work in the following printers:Lexmark E250, E350, E352, E450Dell Printer 1720, 1720DNIBM InfoPrint 1812 Part # 39V1645Toshiba e-studio 350P Part # OD3500The estimated yield is 30,000 per manufacture.Retail price in our area is $73.95.We are retailing it for $51.35.This will be shipped inside another box for safety .International buyers we recommend you ship UPS or FedEx so you can track your purchase from our location right to your door.There is no tracking using USPS once it leaves the USA.