Abstract: A monitor shell includes a first frame and a second frame engageable with the first frame. The first frame includes a hollow rectangular panel, two vertical walls, a lower wall and an upper wall. Each of two receiving devices is formed on each vertical wall, and includes two fins and two blades projecting from each fin. Each of two barbs projects from each vertical wall. Two cylinders project from the hollow rectangular panel. Each of two brackets includes a first branch, a second branch projecting from the first branch, a third branch projecting from the second branch and an elastic branch projecting from the first branch. The first branch of each bracket includes a groove defined therein for receiving a board and a hole defined in an end portion thereof. The third branch of each bracket includes a U-shaped slot defined therein thus forming an elastic handle and a barb projecting from the elastic handle.

Abstract: A rotatable bracket includes a base plate and an upper plate rotatably engaged on the base plate. The base plate defines a hemispherical recess at substantially a central portion thereof. A boss is projected upward from substantially a center of the hemispherical recess. A post is extended upward from a center of the boss. A plurality of wings are radially extended from substantially a periphery of the boss thus defining a space between the wings and a surface of the hemispherical recess. The upper plate includes a hemispherical protrusion extended downward from a bottom side thereof thus simultaneously defining a convex surface and a concave surface at two opposite faces of the hemispherical protrusion. An elongated hole and a substantially square hole are defined in the upper plate and in communication with each other.