A instrument holder is disclosed that is adapted to be attached to a side edge of a surgical table in an operating room and that includes a magnet by which metallic instruments are attachable to the holder for staging during performance of a medical procedure in the operating room. The magnet further may assist in retaining and/or stabilizing the holder in its attachment to the side edge of the table. The holder may include grooves for receiving certain types and/or sizes of instruments. During performance of a medical procedure the holder may be moved to a different side edge of the table. The holder preferably is contained within a plastic, transparent, pliable sleeve for maintaining sterility of the holder, whereby the holder is reusable in subsequent procedures.