Keep sensitive items safe from loss or pilferage. Heavy-gauge open wire construction keeps contents visible at all times, making it easy to check inventory. Each door opens 270 degrees and can be secured along the sides of the unit. Shipped knocked down to save on freight costs. Assembles in minutes. Units include two Metroseal Green Super Erecta shelves which must be used as the top and bottom shelves of the unit. Add an optional intermediate shelf for increased storage capabilities. Includes four 5" diameter casters with plated finish and polyurethane tread (two swivel and two swivel with brakes).