Abstract: A rigid component is formed of a plurality of coupled cylinders. Each cylinder has a circular cross sectional configuration with an axis, a top, a bottom, first and second sides and a slit. The coupled cylinders have parallel axes and include an upper plane with the axes in a common upper plane and a lower plane with the axes in a common lower plane. The slits face downwardly in the upper plane and upwardly in the lower plane. The slits receive a side of each of its adjacent cylinders. The cylinders are secured with respect to each other by the resilience of the cylinders at their slits holding the sides of the cylinders passing through the slits.