1.Size of the outdoor chair cushions: 45 x 19 x 4 inches, suitable for most Adirondack chairs and rocking chairs; the large size of the rocking chair cushion set provides a feeling around the body, more support for you and also more beauty for your outdoor patio and garden chairs. Even after prolonged use, the rocking chair cushions remain fluffy and provide you with consistent comfort. 2.Highly elastic PP cotton: The highquality outdoor chair cushions are filled with highquality PP cotton with high elasticity and sufficient filling, which provides you with adequate support. And they conform to the curves of the human body, increasing overall comfort. Thick cushion, even if you sit for a long time, you will not feel fatigue. 3.Nonslip design: The attached straps can keep the patio chair cushions doubly in place to prevent slipping. You don't need to adjust them often and can simply focus on enjoying your life. In addition, the tufted process prevents the cotton from shifting, increasing durability. 4.Ergonomic design with thick cushions: The replacement cushions for rocking chairs have a seat size of 45 x 19 x 4 inches/110 x 50 x 10 cm and were designed with ergonomics in mind. The 4inch thickness provides unparalleled comfort, perfectly conforms to your body, and effectively relieves pressure. A musthave for all your outdoor rocking chairs.