Support Assembly

A base unit for use in an assembly for supporting an item, the base unit comprising:

• a housing having a first surface, a second surface opposite to the first surface, and a periphery between the first and second surface, an opening in the first surface of the housing, a cavity extending inwardly from the opening, at least one engagement surface in the cavity positioned toward the second surface, and at least one support surface at or toward the first surface of the housing;
• wherein the base unit is configured such that a support component for supporting an item is engageable with and supported by the engagement surface(s) of the housing with a portion of the support component extending from the opening in the housing to support the item outside the cavity, the support component supported by the support surface(s) and arranged to be released from the housing by moving the support component relative to the housing so as to clear the engagement surface(s) and then withdrawing the support component from the cavity.

A support component for use in an assembly for supporting an item, and which is selectively engageable with a housing having a first surface, a second surface opposite the first surface, and a periphery between the first and second surface, an opening in the first surface of the housing, a cavity extending inwardly from the opening, and at least one engagement surface in the cavity positioned toward the second surface and configured to provide a first region of support for the support component, the housing also configured to provide a second region of support for the support component at or toward the first surface of the housing, wherein the support component comprises a locking mechanism to inhibit removal of the support component from the housing when the support component is engaged with the engagement surface(s), the