Optimised to work seamlessly with `Mailmark` technology our Neopost 342192 cartridges are designed to print evenly for the estimated 4,700 page yield of the cartridge.This compatible Neopost 342192 blue ink cartridge has been designed as a low cost alternative to the Neopost original. While offering a lower price point to the original cartridge, this compatible 342192 cartridge carries with it a 100% satisfaction guarantee.Our Neopost 342192 compatible inkjet cartridges are amongst the lowest priced on the Internet and include both VAT and postage so the price you see is the price you pay.Our printer cartridges are amongst the lowest priced on the Internet and carry a 100% satisfaction guarantee.Also included in the price is VAT and Delivery. What you see is what you pay!