Description: Ergonomic design: This lumbar support pillow is designed in accordance with human ergonomics, providing nice support and comfort for your waistQuality material: This chair back support pillow is made of quality polyester, spandex, and cotton materials. It's comfortable, soft, breathable and can be used repeatedly for a long timeSuitable size: The size of this gaming chair back cushion is 46 cmx41 cmx16 cm/18.11 inchx16.14 inchx6.30 inch. It has a compact structure and lightweight design which makes it portableWide application: This waist pillow is nice for use at home or office chairs, gaming chairs, sofas, reading chairs etcGreat gift: This car seat cushion makes a great and practical gift for your family members or friends Specification: Material:Polyester, Spandex and Cotton Size Chart: 46cmx41cmx16cm/18.11inchx16.14inchx6.30inch Package Includes: 1Lumbar Support Pillow Note: Please allow slightly errors 1-2cm differences due to manual measurement.