Adjustable Back Wedge Pillow: 3-position adjustable height helps restore your spine's natural S-curve, promoting proper posture and protecting lower spinal discs from stressful compression, relieving lower back pain. Humanized Design: The cervical bolster pillow is designed to allow you to customize its height. There are 3 positions on the wedge pillow where the bolster can be attached: top, middle, and bottom. Experiment to find your most comfortable position! Offers Great Support: Use this triangular lumbar pillow while sitting or lie down for a gentle incline while sleeping. The wedge shape helps promote proper posture. Lumbar support protects lower spinal discs from stressful compression, relieving lower back pain. Multifunctional Bed Backrest Pillow: The pillow cover is removable and washable. Two convenient side pockets are perfect for storing small items like pens, phones, or remotes. High-quality hidden metal zipper for easy removal and washing. Wide Application: Dimensions: 20x45x45cm/7.9x17.8x17.8inch. Perfect for back support in bed, office chairs, computer chairs, sofas, etc. Ideal for children, teens, and adults. Makes a great gift for yourself, friends, or family. Note: Because our packaging is vacuum-packed, after receiving the product, you need to fluff the product, and after some time it will recover to its full form. Specification: Material: Imitation linen, PP cotton Size: 20x45x45cm/7.9x17.8x17.8inch Color: Grass green, Purple, Brown, Red, Gray Suitable for: Bedside, Sofa, Bay window, Tatami, etc. Features: 1. Made with premium imitation linen, it's skin-friendly, colorfast, non-pilling, and healthy. Thick and durable for long-lasting use. High-quality PP cotton filling, not afraid of extrusion. 2. Removable and washable cover with independent liner design; easy to remove and wash with the outer metal zipper. 3. User-friendly side pocket design can hold your phone and remote, etc. 4. Premium armrest design, more humane. Provides back and lumbar support, allowing you to relax in a comfortable sitting position. 5. Includes Removable Cervical Bolster Pillow: The cylindrical bolster pillow is attached with buttons and is removable so you can place it wherever you need extra support, such as under your knees or feet. Behind your neck, it provides fluffy support so you can lean back and enjoy your book or TV show. Under your knees, it provides pain and pressure relief for comfort.