The popular 8500 Series UltraCompact stack chair stacks up to 40 units high for quick cleanup and efficient storage in cafeteriatype settings.Each has an injectionmolded, textured, polypropylene, waterfallstyle seat and flexible backrest contoured for maximum ergonomic comfort.The plastic won't fade or scratch and is easy to keep clean.The durable 11mm solid steelrod chromeplated frame features underseat ribbing for reinforced support and prevents cracking.Chair is lightweight, with a builtin backrest handle allowing for easy portability.Sledstyle base moves easily over carpeted surfaces while clamping protective glides keep floors unscathed.Available with or without a steel underseat book rack and/or a spacious, removable, blacklaminate, flipup tablet arm for either right or lefthanded users.