Superfine Comfort L-4 Lumbar Back Cushion is used for managing posture alignment and supporting lumbar health during prolonged sitting. Designed to enhance comfort while sitting, the cushion assists in aligning the lower spine by promoting a more natural curvature of the lumbar region. The memory foam adapts to the shape of your back, relieving pressure from key points and promoting a better sitting posture. The adjustable single-buckle strap securely holds the cushion in place, keeping it from slipping during use. Ideal for people experiencing discomfort due to sciatica, back pain, or posture-related fatigue, this cushion offers a simple yet effective way to support your spine throughout the day.