Ergonomic design keeps your spine properly aligned, providing extra comfort Precision crafted from premium-grade materials Heavy-duty sturdy metal base to accommodate a weight capacity up to 350 lbs Wheelbase features five 2-in non-slip, non-marring casters that protect your floor Convenient 360-degree swivel seat Quality eco-friendly, high-density foam provides ultimate durability and comfort Strong, sturdy hydraulic lift cylinder supports a weight capacity up to 350 lbs Stool height 18-in to 24-in (back of seat), 19-1/2-in to 25-1/2-in (front of seat) Seat cover is made from a soft, highly durable vegan-friendly synthetic leather Stain and oil-resistant upholstery, simply wipe clean with warm soapy water