Tripp Lite's SmartRack SRSTABILIZE is an anti-tip stabilizer plate for 25, 42 and 48U rack enclosure cabinets.  This anti-tip stabilizing plate kit provides extra stability for standalone enclosures.  The front stabilizer brace is flush with the floor and helps prevent the rack from tipping.  SRSTABILIZE can be secured to the floor with user-supplied bolts.