Size Measurement This cushion set includes a 24x24x4 seat cushion and a 24x20 back pillow; our patio furniture cushions replacement are ideal patio cushions for outdoor furniture, designed for outdoor chairs, loveseats, couches and sofas Premium Polyester Fabric These patio chair cushions are made of heavy duty polyester with TPU back coating, which is breathable, comfortable, water and UV resistant; there is also a liner outside of the foam to protect it from dirt and dust High Density Foam Outdoor seat cushions 24 x 24 feature upgraded high resilience foam that conforms to the body for cushioning and longlasting support, and quickly recovers its shape after use Details Design Two attached ties keep the outdoor furniture cushions securely fastened to your chairs and not slip easily; hidden zipper makes the cushion covers easy to remove; delicate handle design is convenient to carry and pick up Easy to Clean Just wipe the outdoor deep seat cushions with a damp cloth, or zip off the cover to machine wash; please be careful not to use bleach detergent; we are committed to provide the quality products and answer any questions you may have