A practical and economic method or transporting or storing 17 7⁄8˝ x 25 3⁄4˝ (454 x 654mm) conductive trays. End-load and side-load units available. No tools required for assembly. Units are shipped knocked down. 5˝ (127mm) swivel casters with resilient tread. Zinc-plated wire shelves. Chrome posts. Aluminum split sleeves.