The e-mark is a wireless electronic marking device. Using an app on a mobile device, such as a mobile phone or tablet, users can create and change their full color imprints as often as needed. The app features a custom design studio as well as numerous editable templates and stock messages to fulfill all marking needs. Easily upload logos, signature files and so much more. Replacement inkjet cartridge available. Stamp Type: Custom Message; Message(s): Customizable Message; Ink Types: Inkjet Cartridge; Impression Width: Customizable.