Adjustable Memory Foam Back Cushion & Waist Pillow Set – Japanese Style Lumbar Support for Office Chair & SofaAdjustable Memory Foam Back Cushion & Waist Pillow Set Japanese Style Lumbar Support for Office Chairs & Sofas Looking for a back cushion and waist pillow set that supports both your lumbar spine and mid back in one coordinated system? This Japanese style memory foam cushion set includes a large back cushion (40x50x14cm) and a smaller waist pillow (22x12x5cm) designed to work together to fill the gap between your back and the chair, supporting the