About this item High Density Foam: Soft chair square cushion support made of high-density foam gives high rebound and high durability that improve the support of the sofa cushion well and reduces pain and aches from sitting on sagging furniture. Cuttable Design: Our couch under cushion support have better Anti-deformation capacity and compressive performance thanks to its shape and cuttable design that fills and lifts the sag of the cushion through underneath so that can repair sagging perfect. Size and Widely in Use: 20 × 20 inch cushion inserts for sofa is ideal for renews and revives chairs, loveseats, sofas, sectionals, recliners, RV and porch furniture pieces that have removable seat cushions. Sofa a New Look: Seat cushion sag repair for sagging seat can effectively repair and fix your sagging furniture cushions, easily and quickly, give your sofa a new look! Warm Tips: The cushion sag repair replacement is Vacuum packing and can be restored after being opened for a day or so.We promise 24 hours customer support,please feel free to contact us for any product & order problem. › See more product details