Width (upper panels) and volume-averaged internal pressure (including thermal and magnetic pressure; lower panels) of jetted bubbles varying with the traveling distance of the heads of bubbles in the two sets of runs discussed in Sects. 4.1 and 4.2. Different line colors represent different runs. The vertical lines denote the points where anticorrelations between the width (or pressure) and the final scales of the radio sources are beginning to develop.