Professional Grade, Totally Green Tape Adding Machine. Preferred By Accounting Professionals. myOwn10-Key has loads of features not available on any mechanical adding machine at any price. This program pays for itself quickly with reduced office supply expenses and fewer replacement equipment purchases. You no longer have to buy packages of adding machine tape or boxes of ribbon cartridges. And you won't be paying for any more replacement mechanical adding machines. myOwn10-Key never wears out and never needs paper tape or ribbons which means less pressure on our forests and fewer non-degradable plastics going into our landfills. Got a small or crowded desk? myOwn10-Key moves your adding machine off your desk to your PC. In collapse mode, it doesn't take up much screen space. Own a laptop? myOwn10-Key goes with you whereever you take your computer. You no longer have to carry a calculator in addition to your PC. Visit the 2 Good Software website for a complete list of Features and Benefits.