Abstract: Described is a rust-preventing support for a metal can having a base with a flat upper surface and a flange extending vertically from the perimeter of the base. The base is able to be secured around the bottom of a metal can such that the inner surface of the flange fits tightly around the outer surface of the metal can. In this way, the rust-preventing support prevents exposure of the bottom of the metal can to liquid pooled on a surface. The base further includes a holding structure that can be removably attached to a tube disposed on the outer surface of the flange. The holding structure has an elongated post with a loop at an upper end that is suited for storage of a razor or similar item therein. Overall, the present invention provides a device that prevents a metal can from developing rust on its bottom surface.