Stanley JFC1011 Proto Heavy-Duty Shop Stool 300 lbs. seating capacity. 29-inch to 34-inch pneumatic gas lift seat height adjustment. Comfortable 14-inch diameter x 3-1/2-inch thick vinyl fabric over foam seat. Contoured 12-inch x 6-inch x 2-1/2-inch thick vinyl over foam back. Durable steel constructed seat control with dual 1-inch tubular steel back bars. Back depth adjustment. 1-inch chrome finished tubular legs with 18-inch diameter steel foot ring.