Polyester This rocking chair cushion is soft and plush, cradling you in a cloud of cushy comfort with every gentle sway. 2-piece design includes 1 back pillow and 1 seat bottom Dimensions Back Pillow: 18in W x 21 in L x 3.5 in T and Seat: 18 in W x 20 in H x 5 in T Eco-friendly PFAS-Free C0 Treatment Polyfill inside of cushions made from recycled plastic bottles Fits most standard rocking chairs 100% outdoor polyester fabric 4 sets of ties on back and 2 sets of ties on sea keep your cushion firmly in place 1-Year limited fabric warranty Cleans easily with soap and water