Rainbow is the best stacking chair in its class, with hidden hinges and a 14 gauge steel frame. Available in four leg and sled base models. Great accessories, too. From writing tablets, bookracks and casters. Who says quality seating can't be fun? Features: Standard seat foam and open back. 4 leg models offer black non-marring glides and a wall saver design. Arms: WA - With Arms* NA - No Arms *Available in Black, Grey (Ash) or Taupe finish Frame Finish: EB - Epoxy Black EA - Epoxy Ash ET - Epoxy Taupe CM - Chrome Options: AG - Adjustable swivel glides CR - Chrome rocker CA - Casters (in black frame only) 1 - 1" extra seat foam GB - Ganging brackets (set of 2) BB - Book basket (black) TB - Tablet arm (black) 10 - Stacking dolly 10 20 - Stacking dolly 20 BN - Ballistic nylon back EAS - Energy Absorbing Seat Foam CL - Cal 133 All options may not be available for certain models. Please check SpecAll or price book for availability. Dimensions: Overall height: 33" Overall width: 20.75'-23.5" Seat width: 19" Seat depth: 17.5" Fabric: 200+ textiles to chose from COM - 1.25 yards