Removable & Washable Cover: A convenient zipper so that you can wash your cover without any hassle. The outer covers are durable, breathable, anti-mite, removable and machine-washable. The ventilative cover keeps air circulating so sweat and moisture doesn't fill it up, to keep you cool and comfortable all day long Ideal for office gift and business gift etc, Ergonomic Contour & Wide Application: This ergonomic backrest pad with contour can be placed anywhere along the back of chair and and fit for any person, just slightly adjust position of it. The lumbar support pillow is suitable for most of office chair, car seat, wheelchair, gaming chair, home chair, airplane or train, perfect for drivers, teachers, students, office workers etc.