Joyn is the name of a flexible office furniture system by Vitra . Joyn is open to change and to the diversity of today’s work styles. The desk mat was designed by Ronan & amp; Erwan Bouroullec as an addition to the collection. The simple desk mat, made of black polyurethane, is curved at one end so that it fits perfectly against the edge of the desk and cannot slip while you work. The sturdy and extremely durable surface feels pleasant to the touch and ensures that computers, glasses, calculators, and other items remain securely in place.