Innovative Tri-Tachment ? ensures stability eliminating constant readjustment, fully adjustable design allows fitment to most office chairs, 3 Section lumbar support expands and contracts to natural body curvature. Claim a 10 GoGift Voucher when you purchase this product until 31st December 2023 Terms & Conditions apply, to claim please register online here. The Fellowes Ultimate Back Support helps to reduce tension associated with extended desk work with a two-tiered back support system. A mid spinal support with memory foam cushion promotes good posture and a lower lumbar support with three memory foam sections conforms comfortably to the body's natural curvature. Suitable for use on most chairs, this black back support also features a unique Tri-Tachment for a fixed position without the need to re-adjust.