One pump to load, three pumps to full height unloaded Extra wide lift range - from 4" to 21" 48" long, spring-loaded handle provides rapid return after each pump Heavy-duty construction - rolled edges add strength and resist twisting Gets to the load quickly Pinned 4-3/4" rubber saddle will not lift off during use and minimizes scuffing of lifting surface 2-year limited warranty 6-Ton Jack Stands Formed and welded steel base for strength; self-locking ratchet handle cannot be released under load Durable baked enamel finish resists corrosion Stands conform to ANSI PALD-4 load rating standard; are factory tested before shipment Jack stand base: 11-7/16" x 10"; height range: 15-3/4" to 24"