The Lexmark 34, 35 Twin Pack Cartridges bring you premium-quality, professional looking printouts with each use. They deliver up to twice the output as compared to ordinary cartridges. The Lexmark inkjet cartridges use quick-drying, fade-resistant inks that do not smear, streak or blot. They offer sharp images with minimal loss in translation from input to output. Further, the Lexmark high yield cartridges take advantage of optimized ink drop size for high-quality printing. Also, each of these black and color cartridges can comfortably last up to two years without drying up. Using genuine Lexmark inks and paper help maximize the performance and durability of your printer.