A lifting jack is a mechanical device used to raise heavy objects, typically vehicles, off the ground. It operates by using a screw mechanism or hydraulic pressure to lift the load, making it easier to perform maintenance or repairs. Common types include floor jacks, bottle jacks, and scissor jacks, each designed for specific lifting tasks. Lifting jacks are essential tools in automotive repair and construction. They provide safety and stability while elevating heavy items, allowing users to work underneath or around them. Proper usage and maintenance of a lifting jack are crucial to ensure safety and effectiveness during lifting operations.