This strap chair cushion features a double foam design. The top layer is composed of high-quality soft broken memory foam, and the bottom layer is bamboo charcoal high-density foam, which can provide effective support, and has good odor removal and moisture absorption. The design offers an excellent combination of softness and support, ensuring a comfortable experience. This memory foam chair cushion is made of high-quality polyester fabric, durable, anti-pilling, anti-fading, and not easy to break. The unique linear texture of the fabric adds a touch of elegance to the solid color cushion, making it an excellent addition to your home. The 4-piece dining chair has a layer of non-slip gel particles at the bottom of the seat cushion to grip the surface of the chair without causing any damage. It also includes two sets of rear straps that secure the seat cushion firmly to the back of the chair. This versatile memory sponge cushion fits most chair sizes and is ideal for a variety of environments, including dining rooms, living rooms, bedrooms and offices. When cleaning, simply wipe the thick seat cushion with a damp cloth or clean the outer cover with a washing machine. The product is packed in compressed rolls and can be restored to its original state within 1-2 days after unpacking.