Premium comfort seat features 3-1/2-in of eco-friendly, high-density durable foam Strong, sturdy hydraulic lift cylinder supports a weight capacity up to 250 lbs Wheelbase features five 2-in non-slip, non-marring casters that protect your floor Convenient 360-degree swivel, base measures 22-1/2-in in diameter Easy-access lever allows for adjustable seat height from 17-1/2-in to 23-1/2-in Seat cushion measures 14-in x 3-1/2-in 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 Seat will not lose its shape, resistance, or become compressed during use Minimal assembly required. Instruction manual included