Back & Lumbar Support Cushions Product Information: Our back support for chair features an arc surface design and can be adjusted in five levels for maximum comfort. With its durability, it can effectively support the waist and is perfect for use with Computer/Desk Chairs or Car Seats. Say farewell to aches with our back support. Specification: Name: back support for chair Material: polyester+PP Size: 40*14*40cm | 15.7*5.5*15.7in Features: Breathable and comfortable, five-level adjustment Function: Lumbar relief List: 1 x Lumbar Support Pillow See more product details 1.Posture Perfect: Our lumbar support pillow is designed to keep your spine in its natural and healthy curve, allowing your muscles to relax and reducing the risk of strain or injury. The unique arc surface supports the left and right sides of the spine 2.Height Flexibility: Delight in perfect fit and comfort with our Lumbar Support Pillow that adjusts to different personal heights and preferences. With five-level cushion height customization, simply add or remove memory foam inserts as you like. 3.Ventilation and breathability: Its well-ventilated and breathable fabric prevents friction damage to the seat, and its durable design results in good toughness and strong support without any deformation. 4.Scalloped Edges Are Bent: The ergonomically designed Lumbar Support Pillow boasts scalloped edges that conform to the natural curve of the spine. The result is unparalleled support for the lower back, reducing pressure and fatigue for unmatched comfort. 5.Extensive Application: This lumbar support pillow helps you enjoy a comfortable sitting posture by reducing the pressure on your lumbar spine. It is suitable for various seats at home, car, etc. and can be easily attached to your computer/desk chair or car seat.