The Channel FTDR-4 mobile tray drying rack has three shelves, each with twenty-one slots a piece. The slots are 2.75” apart. Made of extra heavy-duty high tensile extruded aluminum, the drying rack comes with a lifetime warranty for traditional foodservice applications. Its vertical and horizontal frame sections are extruded aluminum. It has extra heavy-duty 5” x 2” plate swivel casters for easy maneuverability. The FTDR-4 ships fully assembled for immediate use. Benefits and Features: Designed for storage and drying of various food service trays FTDR-4 fully assembled and ready for use Extra heavy duty, high tensile extruded Type 6063-T5 alloy aluminum Vertical and horizontal frame sections are extruded extra thick walls 1-1/4" tubular aluminum Extra heavy-duty 5” x 2” full-swivel plate casters with Zerk grease fittings Casters are securely bolted to frame to facilitate replacements 2.75” slots (3) shelves (21) slots per shelf Specifications: Model: FTDR-4 Warranty: Lifetime for traditional foodservice applications Dimensions: 60" H x 63” W x 30” D Approximate Weight: 210 lbs. Certifications: Made in USA, NSF