Stainless Steel Electric Food Warmer ( FWE 420 ) Frame : Stainless Steel grade SS 304 / 0.7 mm Thk . Double wall frame : insulate heat within warmer while keeping the exterior of the warmer cool to touch . Door : H/Duty non fall out customised door lock secures door and prevents heat releasing . Handles : Three fitted handles - one top handle & two side handles provide more option to carry warmer . Comes with removable shelvings . Electric heating : 240 volts and 300 watts .