The sofa protector helps your sofa to last longer by reducing stress on the springs and preventing sagging the protector can also be used to add an extra lease of life to sofas past their best, giving extra support to the base and restoring comfort. Made from high quality MDF panels, the protector offers excellent support and is extremely durable. With a fold-out design it is easy to install, and the grip-fabric coating prevents cushions from slipping once they are in place. Oypla 3 Seater Sofa Protector Support Board Seat Saver in Black