"About Size: The outdoor chair cushions 20x20x4"" fit most outdoor furniture. Please accurately measuring the dimensions of your furniture's seating area before purchasing, the product is packed in a vacuum bag, make sure the cushion size fits your furniture. Weather-Resistant: Made with 100% olefin fabric, offer better UV resistance, over 1500 hours of sunlight, prevents fading after prolonged sun exposure, and protects cushion insert. Soft and comfortable: The PNP FKJP patio chair cushions fill with 30D high-density foam, greatly extends the resilience and service life, won’t become flat quickly. Easy to clean: Only need clean rag and mild warm soapy water to clean it up or take off the cushion cover and put it in the washing machine, it’s machine washable. Usage suggestions: The bench cushion is shipped in vacuum packaging, after receiving cushion can pat it or leave it for a while, the cushion will resume fluffy."