This 3-seater booster cushion is designed to add height, comfort, and firm support to any sofa, making sitting and standing easier—especially for elderly users or anyone needing extra assistance. Filled with high-density memory foam, it provides orthopaedic support that helps maintain proper posture and reduces pressure on the hips and lower back. At 150 cm long and 10 cm deep, it spans most three-seater sofas, instantly refreshing tired or sagging seating. The removable polyester cover is soft to the touch, durable, and fully washable, ensuring easy care and long-lasting freshness. Its firm structure helps lift seating height without losing comfort, offering a stable and supportive feel. Whether used to rejuvenate an old sofa, provide extra height for elderly family members, or create a more supportive seating surface, this large three-seater cushion is a practical upgrade for any home.