be made of metals such as for example galvanized or stainless steel alternatively the magnet 20 may be directly attached to the bottom 14 of the refuse container 10 in a variety of ways for example by welding or by using adhesives cement rivets bolts or screws furthermore depending upon the dimensions of the magnet 20 and the thickness of the bottom 14 of the refuse container the magnet 20 may be embedded in the bottom 14 it is not strictly necessary for the magnet 20 to be fully encased by the bottom 14 and the housing 18 however it is preferred to isolate the magnet 20 from the interior of the refuse container 10 to prevent liquids typically present in refuse from corroding the magnet 20 especially if the magnet 20 is made of ferrous material the magnet 20 or portions thereof may be exposed to the exterior of the bottom 14 and be adapted to be flush with the exterior of the bottom 14 alternatively ferromagnetic plates may extend between the magnet 20 and the exterior of the bottom 14 such arrangements intensify the magnetic attraction at the top surface of the support plate 11 in addition if the magnet 20 is positioned adjacent the side wall 12 the magnet 20 may be supported at least.