Patented ERGO TOP® technology with fully flexible seat (like sitting on a gymnastic ball) Synchronous mechanism with seat depth adjustment Ergonomic contoured seat Seat with a visible cut-out for tailbone relief Seat depth adjustment Smooth seat height adjustment including seat depth damping Backrest height can be set to 8 different positions Seat opening angle of the backrest lockable in 5 positions Backrest pressure can be adjusted to a user's weight of 45 - 120 kg Aluminium base and gas spring black or polished Soft 0 65 mm double castors, suitable for all floor coverings Cover material not glued, with glued backrest Cover material available from LOFFLER TEXTILES Cover material (seat and backrest) available in different colours without extra cost within the same material group Operating instructions affixed to the chair EQUIPMENT OPTIONAL_ Fixing of the ERGO TOP® technology Tailbone relief optionally discrete with fabric cover (Nr. 1) Reduced seat on request Armrests freely selectable from the price list ..Equipment” Upholstery of the backrest and seat Optional backrest types: TANGO, LEZGO, LEZGO AIR and FIGO (FG K9) Kyphosis backrest possible DIMENSIONS (for LOFFLER+ backrest)_ Backrest height from seat: 500 - 570 mm Armrest height from seat: 200 - 300 mm * 30 years warranty on everything except for upholstery materials at an average using of 8 hours per business day. Please visit www.loeffler.de/en/warranty for details. Illustrations with options. Subject to technical alterations and misprints. Last updated: 12/2016