4-piece seat cushion adds comfort and coziness to your leisure time. Made of high-quality polyester fabric, this seat cushion is not only durable, but also has excellent waterproof and fade resistance, which can add a bright touch of color to your furniture, whether it is a leisurely afternoon in the sun outdoors or a warm party time indoors. The size of the seat cushion is just right, and the 18.5 in. x 16 in. x 3 in. size is suitable for most standard size chairs, making your sitting feel more comfortable and natural. The high-density sponge filling gives the seat cushion good resilience, ensuring that the long-term use still maintains a good support effect. Each seat cushion is equipped with secure straps on both sides so you can easily hold the seat cushion in place, keeping it stable for frequent use or occasional naps, so you do not have to worry about shifting or realigning it. This seat cushion is not only suitable for outdoor courtyards, terraces, and other places, but also can be used indoors, adding a warm and elegant environment to your home. With a variety of colors and patterns to choose from, the stylish combination makes it easy to match different decorative styles that protect your bottom while showing a simple aesthetic design.