Sunex Tools 8514 Mechanic Stool

Adjustable pneumatic stool, 18-22 in, on a 300 lb rated 5-leg tubular steel base confirmed by heavy users at 250-280 lb. The tractor seat has a low backrest lip, PU foam, and a sewn vinyl/PU cover; owners report 8-12 hr daily comfort and back-injury relief. Five 3.5 in rubber-tread casters on chrome-rimmed swivels roll cleanly on concrete (including cracked), carpet, and shop floors with no floor-marking. One cylinder-failure outlier sits against 4-8+ year tenure including pro shops; a replacement caster (part RS8515CS) is available. The 17 in steel tray, 1 in deep, is used in practice; no magnetic strip. Amazon's Choice.

Right for DIYers and home-shop users on wheel work, brake jobs, engine-bay reaching, or any seated task where an 18-22 in seat fits and 300 lb steel handles the load; the backrest lip is a real differentiator for users needing lumbar contact on long sessions. Skip it if you need a seat below 18 in, the 400+ lb tier, or under-vehicle work (use a creeper).

The 300 lb rating is for seated load; standing on the seat is outside the rated use case. Pneumatic cylinders can sink under load; one failure is documented and the warranty term is not disclosed. Steel base, PU foam, and rubber-compound casters carry no chemical pathway. The steel base is scrap-recyclable; the foam and vinyl cover need manual separation. A 7-plus year heavy-shop lifespan reduces disposal frequency.