Abstract: A bodyform, in particular a dressform, wherein a central support carries opposed pairs of body sections which are adjustable in spacing by means of adjustment mechanisms mounted on the central support, which mechanism is operable by an operating rod projecting from the bodyform and which is rotatable about its axis to operate the adjustment mechanism and is axially displaceable to lock said mechanism in its adjusted position. A preferred adjustment mechanism comprises a pair of pushrods which drive opposed pairs of body sections equally and oppositely, these pushrods being engaged with opposite sides of a central cog thus enabling a driving gear on the operating rod to act on one of the pushrods only. The adjustment mechanism is accommodated in a housing which carries fixed teeth in spaced overlapping relationship to the teeth of the pushrod whereby opposite axial movement of the rod engage and disengage the gear from the fixed teeth while such gear remains in engagement with the pushrod.