OTC 1784C 12-ton Ratchet Style Jack Stands - Pair Steel base for strength measuring 12-5/8 inch x 11-3/8 inch Self-locking ratchet handle and durable baked enamel finish Jack stands conform to ANSI PALD-4 load rating standard Factory tested before shipment Height range of 19-1/2 inch to 30-3/4 inch