"A budget chair with a novel lumbar gimmick and a few surprisingly solid parts."
The 'Inflatable Lumbar Support' is a simple, manually-pumped air bladder inside the chair's back. It allows you to adjust firmness, replacing the fixed foam block found in most chairs at this price.
This chair is a candidate for short-term or occasional use where the sub-$120 price is the primary driver. The flip-up arms are a practical space-saver, and the steel base is a genuine advantage over other ultra-budget options.
Anyone working from home full-time should budget more for a chair with greater durability and true ergonomic functions like seat depth adjustment and synchronous tilt. The PU leather and basic mechanism are not engineered for 40-hour work weeks.