The Opera 20-5 combines ergonomic precision with refined comfort, delivering balanced support for extended periods. This Opera 20-5 chair features a standard seat paired with a medium backrest, making it suitable for the average height user. The innovative knee tilt rocking mechanism provides smooth, responsive movement that encourages natural posture shifts, whilst pebble-textured handles enable intuitive seat adjustments. The Opera 20-5 chair merges functional design with tactile sophistication. Specification Knee tilt rocking action Independent back rest angle adjustment Back height adjustment Seat slide Seat height adjustment Inflatable lumbar support Sewn edge seat & back rests Polished aluminium star base 8 seat sizes available - see Seat Size within Seat Options tab Dimensions Weight Limit (Stone): 20 Guarantee: 5 Years On All Structural Parts Including Mechanism Seat Height (cm): 49-59 Seat Width (cm): 46 (standard) Seat Depth (cm): 45-50 (standard) Back Height (cm): 50-60 Back Width (cm): 42 Centre of lumbar curve (cm): 18-28 Mechanism: Floating knee tilt
