Strongway Double-Locking Jack Stands - Pair, 6-Ton Capacity, 15 5/16in.-23 13/16in. Lift Range Body and handle constructed of high-grade steel and built to exacting standards for quality and durability Lead-free paint finish is applied after a thorough chemical wash to ensure a long-lasting finish and to help prevent rust Paint is oil, grease and dirt-resistant for easy cleanup Welded frame design adds extra durability Patented double-lock technology with safety pin design adds extra safety and security when working beneath a vehicle (2) Double-locking jack stands Body and handle constructed of high-grade steel and built to exacting standards for quality and durability Lead-free paint finish is applied after a thorough chemical wash to ensure a long-lasting finish and to help prevent rust Paint is oil, grease and dirt-resistant for easy cleanup Welded frame design adds extra durability Patented double-lock technology with safety pin design adds extra safety and security when working beneath a vehicle Self-locking ratchet provides precise adjustments 3 15/16in. x 1 1/4in. saddle creates a large surface area to provide better contact with the load being supported Sold in pairs Large 10 4/5in. x 9 29/64in. foot base size resists sinking into asphalt and similar surfaces Built in ISO certified facilities and engineered using the same systems as Aerospace Technologies and the Automotive OEM sector Meets ASME PALD 2009 standards