The ruggedly crafted Ranger 3-Ton Professional Series Quick-Pump Floor Jack is a versatile quick-lifter with a 3-ton lifting capacity. Heavy steel construction and sealed hydraulics guarantee maximum durability, while the built-in safety overload valve protects personnel and equipment. If you accidentally lift a vehicle too heavy for the jack, it won’t suddenly collapse on you and ruin your day. The hydraulics in the floor jack will gently descend. Since you never go under a vehicle that isn’t secured on jack stands, your personal safety and the safety of your property should never be in question, even if you accidentally overload the jack.