Large Load Capacity: These folding hinges can load about 50kg or 100lbs, so they are used as a large lift-up coffee table mechanism for mounting furniture hinges with springs. Saving space: Using them can help you save a lot of space, making your home more clean and tidy, perfect for your project, and creating the comfort and convenience of home life. How to use: it is very easy to assemble, just attach the springs to the hinges, very simple to use. With this type of lift you can turn your normal coffee table into a functional coffee table, they can also be used to change the function of another table. Durable to use: This lift is made Made of sturdy steel, anti-rust and corrosion resistant, durable and sturdy for long time use, not easy to bend and break. Multifunctional: The lift-up coffee table can turn your normal coffee table into a table functional bass, you can lift the top table to achieve a variety of uses needs, such as dining, writing, meetings, etc.