Description: 【Ergonomic】: Lumbars Support Pillow is designed to provide comfortable support for people who sit for long periods of time, whether in the office, reading, or using a phone. Its curved design is ergonomic, fits the lower back, and is very comfortable 【Adjustable buckle】: Lumbars Support Pillow for Office Chair's buckle allows you to adjust the height freely, ensuring that the lumbars cushion is firmly fixed to the chair without slipping off. No need for frequent adjustments, you can enjoy comfort while working, resting or relaxing 【Suitable for all seasons】: Low Back Support Cushion uses a breathable linen cover that remains cool and comfortable even after long term use. It is suitable for all seasons, provides gentle comfort, keeps you dry and enhances your experience 【Invisible zipper design】: Lower Back Cushion uses an invisible zipper design, which is beautiful and easy to clean. Whether you use it in the office, living room or bed, it can keep the pillowcase fresh and bright 【Comfortable material】: The interior of Chair Back Pillow is lined with taffeta, which provides support and comfort. It maintains comfort and stability even after long term use Size Chart: 45cmx10cmx27cm/17.72inchx3.94inchx10.63inch Package Includes: 1 Lumbars Support Pillow  Note: Please allow slightly errors due to manual measurement and different monitors.