[Premium Memory Foam Seat Cushion] Experience unparalleled comfort with our high-density memory foam donut cushion. Designed for durability, it retains its shape even with extended use. The thermal sensing feature allows the foam to adapt to your body temperature, ensuring optimal support tailored to your unique contours. [Ergonomic Design] Our hip pillow features a contoured shape that provides exceptional support for your hips and thighs. The central hollow design alleviates pressure, making it ideal for those suffering from hemorrhoids or postoperative discomfort. The ergonomic U-shaped groove effectively reduces coccyx pressure during prolonged sitting. [Washable Velvet Pillowcase] The cushion is covered with a soft velvet pillowcase, enhanced with non-slip silicone on the base for stability. The smooth zipper allows for easy removal and cleaning. Please avoid prolonged contact with light-colored leather to prevent staining. [Ideal Cushion] This versatile office chair cushion fits any chair, transforming uncomfortable seating into a relaxing experience. Perfect for home, office, or shared spaces during family gatherings, birthdays, Christmas, and Mother's Day. [Please Note] For optimal support, the recommended weight limit for the sciatica relief pillow is 180 pounds. The non-slip silicone base is designed to stay secure; however, avoid placing it on light-colored leather surfaces for extended periods to prevent potential staining.