A container apparatus comprises a mounting means, a lid connected to the mounting means by a connecting means and a frame slideably connected to the mounting means. The frame is adapted to support a waste container. The frame is slideable between a first frame position, wherein an open end of the waste container is entirely covered by the lid, and a second frame position which is offset from the first position in a first direction. The connecting means allows the lid to move between a first lid position and a second lid position which is above the first lid position and is offset from the first lid position. The apparatus has lid moving means which move the lid to the second lid position when the frame is moved from the first frame position to the second frame position. A collar for mounting a container between runners of a retractable container apparatus is also provided.