thinner or more flexible interconnecting elements to the thicker or more rigid bosses platform sections 20 it is through these webs that flexure occurs allowing movement of one thicker or more rigid section relative another thicker section depending upon the final geometry selected this movement may have several degrees of freedom for example if the web is of the form as in detail fig1 where the web is predominantly flat in form the web may act as a both a torsional flexure occurring predominantly across the webs width for the thicker or more rigid bosses platform sections as well as a linear flexure along its length additionally depending on the characteristics of the materials used the web may stretch in length allowing another form of displacement if however the web is of the form found in detail fig1 where the web is formed as a v or an inverted v the web may exhibit the preceding characteristics as well as act as a living hinge allowing the angle formed by the faces of said v to change this would result in a different set of degrees of freedom of one boss platform section relative to another both of the aforementioned forms of webs and other contemplated designs all may share common.