About Size Including 4 outdoor chair cushions measuring 19 W x 19 D x 3 T Measure the seating area of your furniture to make sure the size of cushions is right . Our outdoor chair seat cushions are available in different colours and sizes suitable for outdoor chairs, dining chairs, sofas, and other different chairs. Ideal decoration for garden, patio, balcony, beach, and other indoor and outdoor scenes. Waterproof and Fade Resistant Patio furniture cushions are made of 300GSM polyester fabric. The surface of the fabric is made waterproof and fade-proof. TPU waterproof layer is added to the inside of the fabric, front and back double layer waterproof design, making your furniture safer.