Lightweight and easy to fold, comfortable on the go. This memory foam seat cushion features a high-density slow-rebound sponge core that conforms to the curves of the buttocks, effectively distributing pressure on the ischial tuberosities, providing stable support, and relieving back pain from prolonged sitting. The overall structure is foldable for easy storage, compressing to a compact size for convenient portability, suitable for various scenarios such as office, travel, outdoor activities, and in-car use. Equipped with double-layer carrying handles, it's easy to carry, freeing your hands. The outer layer is made of wear-resistant and non-slip fabric, durable and easy to clean, and supports disassembly and washing. The matte black finish is simple and elegant, with a low-key and timeless visual appeal, suitable for modern home and business environments. Multi-functional, it can be used as a seat booster, lumbar support cushion, temporary floor mat, or small stool, truly covering multiple scenarios.