An X client is a program that interfaces with an X server (almost always via the X libraries), and thus with some input and output hardware like a graphics card, monitor, keyboard, and pointing device (such as a mouse).
This package provides a miscellaneous assortment of several dozen X clients that ship with the X Window System.
This package is provided for transition from earlier Debian releases, the programs formerly in xutils and xbase-clients having been split out in smaller packages.