Both adjustable and fixed‑height metal lab stools are offered. Adjustable models use an SGS‑certified three‑stage hydraulic gas lift (typical range about 21.7 to 28.0 inches floor‑to‑seat), while other models are fixed‑height.
Frames are constructed of metal—typically listed as Steel in the product specifications.
Common adjustable metal lab stool ranges in this set are about 21.7–28.0 inches and about 33.1–39.4 inches (measured floor to seat top).
Capacities vary by model. Many rolling/adjustable metal stools are rated around 450 lb; other metal models in the collection range roughly from 200 lb up to 500 lb.
Seat styles include saddle, round, and square. Reported seat dimensions span about 12 × 12 inches up to roughly 14–15.7 inches in diameter or width, depending on the model.
Assembly varies by model: some require adult assembly with no tools needed, some include tools or require basic assembly, and others arrive fully assembled with no user assembly required.