Durham 305B-95 Cold Rolled Steel Heavy Duty Triple Track Bearing Slide Rack FOR 5 Large Compartment Boxes, 375 lbs Capacity, 12-1/2" Length x 20-1/2" Width x 21" Height, Gray Powder Coated Finish. Slide Rack does not come with compartment boxes which are sold separately. Sturdy construction using prime cold-rolled steel Each cradle holds up to 75 pounds Positive closure feature keeps trays from sliding out unintentionally Punched holes for easy installation of locking hinge (locking hinge not included) Modular with standard base and slide rack