Design and materials Neon is made of solid steel with an aluminium base. In the standard version, all the metal parts are black. On request, the base is also available in polished aluminium. In the laboratory version, the tough plastic parts are basalt grey. Neon is available with a choice of castors with load-sensitive brakes for hard floors or with abrasion-resistant glides. In addition, for the high version, there are optional Stop&Go castors available. The most striking feature of Neon is its flex strip. It is made of soft plastic and serves to protect the chair and its environment. There is a choice of three modern colours for the flex strip.