Description: MEMORY FOAM CHAIR CUSHION: Made of dense premium comfort polyester fiber and memory cotton, designed to support extended sitting time and never go flat. Non slip bottom provides you with a steady cushion, which, stays in place and does not slide. COMFORT & BREATHABLE: Office Chair Seat Cushion is comfortable and breathable. Relives pressure on pelvic, coccyx, tailbone, legs and hip bones while sitting. PORTABLE OFFICE SEAT PAD: Perfect for a long flight or hours of work at the office. Use on your chair at the dinner table and then take it with you to the couch to comfortably watch a movie. MACHINE WASHABLE: Washable cushion cover allows you to keep your cushion fresh and clean. Just open the hidden zipper, and remove cover and place in washing machine to have your cushion looking new. DIMENSIONS: This cushion is perfectly shaped and sized. You can take it with you, very convenient. Specification: Material: Polyester + Memory Foam Size Chart: 45x35x8cm/17.72x13.78x3.15inch Package Includes: 1x Seat Cushion Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!