Stratasys, Inc. develops, manufactures, markets, and services a family of three dimensional (3D) printers and rapid prototyping (RP) systems that enable engineers and designers to create physical models, tooling and prototypes out of plastic and other materials directly from a computer-aided design (CAD) workstation. The Company's systems are used both to create prototype models, as well as to produce parts for end user or direct digital manufacturing (DDM) applications. In addition to selling RP systems and 3D printers, the Company’s paid parts service makes and sells physical models, tooling and prototypes for RP and DDM applications based on its customers’ CAD files.