The Fellowes I-Spire Series Lumbar Cushion features an innovative design, which provides comfort during extended periods of sitting. The foam cushion is covered in a breathable mesh fabric for support and comfort.Suitable for most chairs, the adjustable strap and buckle keeps the cushion in place.Foam cushion for enhanced comfort and support, innovative design provides comfort to your back whilst working, breathable mesh fabric enhances personal comfort, adjustable strap with durable buckle holds lumbar cushion in place