1.Multifunctional Back Cushion: The headboard backrest is made of soft velvet fabric, skin-friendly breathable, y durable. Stuffed with high resilience pearl cotton to provide comfortable back support and reduce the pressure on the neck, back and waist. 2.Adjustable Triangle Backrest: The adjustable back cushion has a detachable cylindrical pillow with 3 different heights. You can remove the corresponding headrest from the back cushion and fix it in different positions on the wedge-shaped pillow to get perfect comfort in each position. 3.Practical Details: Fine manufacturing, clean edges. The storage bag on the side of the reading pillow is designed for your mobile phone, remote control and other small objects. Flexible buttons, durable metal zipper, easy to remove and wash. Wedge pillow size: 45x45x20cm, 60x50x20cm. cushion, office chair cushion, headrest pillow, mother's day gift, father's day, christmas gift, birthday gift. Suitable for people sitting or resting for a long time, comfort your sitting and resting body.