Abstract: A tensioning and attachment device comprises a bracket displaceably mounted in relation to a bar or a tube and a tensioning arm is pivotally connected to the bracket and comprises a handle portion and also two lugs, which act against the envelope surface of the bar or tube. These lugs are so shaped that upon actuation of the tensioning arm they firstly bring about displacement of the bracket in relation to the bar or tube, and in the end or final position they fix the bracket to the bar or tube. Preferably, the device is combined with a stand structure such as a display stand, and the foot or base of the stand may have resilient members in the shape of rubber blocks.