Round housing and inner square section made of light alloy profiles, inner square section with four through bores, the lever arms can be bolted on and if necessary, the bores can be tapped too. Both ways provide an excellent connection without play which is necessary in order to transmit alternating motion by passing the neutral position in either direction. All metal parts are paint finished. ROSTA Rubber Suspension Unit, Type DK-A, Light Metal, Blue Painted, 108 mm Dia x 210 mm L