Arcan 3-Ton Quick Rise Aluminum Floor Jack with Dual Pump Pistons & Reinforced Lifting Arm (ALJ3T)The Arcan ALJS3 3-Ton Steel Jack Stands has an overall 3-Ton lifting capacity and a working range of 11-5/8 in. to 17.5 in. A counterweighted pawl locks in place securely to prevent slipping, while allowing easy adjustments. A large contoured saddle with locating lugs helps support and position vehicle frame. The wide stance base delivers superior stability and includes base pads that prevents the jack from sinking into asphalt and provide stable footing for the jack stands. The welded construction and alloyed steel offer years of support. Arcan puts all of our lifting equipment through voluntary and rigorous third party safety testing, as outlined by the ASME PASE-2014 Safety Standard for Portable Automotive Service Equipment, to ensure that our products are among the safest on the market.Pro-LifT T-6903D Double Pin Jack Stand - 3 Ton, 1 PackPro lift T-6903D is a 3-ton double locking jack stands. It features a high quality cast ductile Iron Ratchet bar and sturdy stamped steel base provide durability and longevity which makes ideal for home, professional and farm use. Always used in pairs, counter weighted pawls serve as a safe secure locking device to prevent the load from accidental disengagement. An attached pin lock provides support, locking the ratchet bar in place for an additional carrying point. One piece, multi position ductile ratchet bar provides strength and durability as well as a quick adjustment mechanism that securely locks into the desired position.