A pressure applicator assembly is provided that can be configured to allow for a range of pressure application and pressure localisation options along with the ability to have a rocker base for directing the applied pressure to a subject in a particular direction if desired. The assembly includes dome shaped resilient members that nest together and which each include magnets for magnetic fixation to a surface of a base. Due to the nesting of the resilient members the degree of firmness and/or the radius of curvature and thus the degree of localisation of application of force can be varied by adding or removing resilient members. In addition the magnets allow the resilient members to be rapidly fixed to any magnetically attracted surface so that they can be used in horizontal, vertical or sloping orientations. Furthermore, the apparatus is readily stored and transported since it can be placed into the compact nested configuration as required.
