JASPERS Keyb-Mouse Swivel Plate B, height adjustable and swiveling, consisting of one black laminated plate 60 x 20 cm (picture shows former version in light grey) and a holder from t-fittings and black powder coated alu tubes, which can be mounted at a vertical tube of a JASPERS Rack, 2R, 3R or 4R stand. The swivel plate is not suitabel for using on inclined tubes.