SIHOO M57 Ergonomic Office Chair, Mesh Back Desk Chair with 3D Armrests — 90-day price-per-unit history

Over the last 90 days, the tracked price per unit for SIHOO M57 Ergonomic Office Chair, Mesh Back Desk Chair with 3D Armrests ranged from $189.98 to $189.98 (average $189.98), across 1 captured data point since 2026-08-27. Dealophant records the real cost per unit — not the sticker price — so you can tell whether a "deal" is actually cheap per ounce, sheet, load, or count.

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