A wall mounted rail system with movable boards comprises a pair of elongate rails. Each rail has an upwardly opening channel defining an upper track and a downwardly opening channel defining a lower track, the rails being horizontally mounted in parallel spaced apart relationship on a wa
Tables and other mobile furniture used in seminars and training classes are joined by ring connector elements mounted for rotation on each item of furniture. Male and female dovetail connection points on the periphery of each ring are engaged to connect items of furniture.