Provide uniform rebound force: The structural design achieves uniform support for the cushion as a whole, reducing local deformation Packaging: A set containing 5pcs x springs, convenient for batch repair and replacement Widely applicable fields: Suitable for various types of seats, including sofas, stools, leisure chairs, and other furniture structures Enhance user experience: Strengthen the seating area structure to help make the seats more stable and comfortable for daily use Easy and fast installation: can be easily installed into sofas or chair frames without the need for complex tools