Comfy & Ergonomic Support: Experience superior comfort with our high-resilience cushion foam, designed to provide exceptional support and durability. The 2" thick D-shaped chair cushion protects your tailbone, alleviates pressure, and relaxes your muscles. Say goodbye to hard chair surfaces and discomfort from prolonged sitting—you can maintain a natural posture effortlessly. Non-slip Bottom & Ties: The cushion features a specially designed bottom with non-slip dots and includes two 23.6" removable ties to secure it in place. While the non-slip dots provide reliable grip initially, you can use the ties for added security, especially as the cushion ages. Easy to Clean: Enjoy hassle-free maintenance with the removable zippered cover. Simply unzip, wash in cold water (hand or machine), and tumble dry on low or air dry. Avoid ironing or bleaching the cushion, and never wash the foam insert. Attention to Detail: Crafted from durable 250g/m polyester fabric, our cushion cover is breathable and skin-friendly. The overlocked stitching ensures durability, while the hidden horizontal zipper prevents scratches on your furniture. Versatile Compatibility: Measuring 17"L x 16"W x 2"H, this horseshoe-shaped cushion fits most chairs, including dining, kitchen, folding, rocking chairs, and bar stools. Its simple solid-color design blends effortlessly with various decor styles. Use Scenarios: Ideal for long hours at the dining table, enhancing comfort during family meals; adding support for your favorite reading chair, creating a cozy spot for relaxation; or upgrading seating at your home office desk, making work more enjoyable. Please measure your chairs before purchase and allow 48 hours for the cushion foam to fully expand after unpacking.