A drawer assembly including a drawer and a sliding guide rail system for slidably opening and closing the drawer within an article of furniture is provided. A support bracket for supporting the drawer is provided at each side of the drawer. The sliding guide rail system includes a pull-out rail disposed within each of the support brackets. One of the support brackets has a slot and the pull-out rail disposed within one of the brackets has a recess. A stabilizer arrangement for stabilizing the sliding movement of the drawer is also provided. The stabilizer arrangement includes a guide bracket and a lever. The guide bracket has a protrusion engageable within the support bracket slot. The guide bracket has a resilient grip portion that allows for the guide bracket protrusion to be adjustable laterally within the support bracket slot when the guide bracket is locked onto the support bracket.