Multipurpose design - Our lumbar pillow is versatile. One unit can be used as a nap pillow, two as a lumbar pillow, and three as a hip pillow. The lumbar setup supports the spine with ergonomic alignment, while the nap configuration features a 6-inch curve height to fit different body sizes and provide a cozy hug while resting. Portable and lightweight - Lightweight orthopaedic seat padding that is easy to carry and use in various sitting situations. Ideal for people who need support and comfort on the go, at work, in the car, or while travelling. Removable and washable - The cushion cover is removable and machine washable. Lightweight and simple to refresh, then reattach to the pillow. Ergonomic and breathable design - The cushion uses a memory cotton material for a soft yet durable feel. It is designed to be breathable and ventilated, providing arm comfort and helping relieve arm pressure. Use scenarios - Office or desk setup: use as a lumbar cushion to support proper spine alignment. - Home and travel: use as a nap pillow on a sofa or bed, benefiting from the 6-inch curve for a comfortable rest. - On the go: pack the modular pieces as a hip or arm cushion to stay comfortable during travel or long trips.