Our pneumatic stools feature a comtemporary design, stylish comfort, and select options that meet the needs of any office. Standard Features Round, 16” x 4” seat cushion Brushed cast aluminum base 5 year warranty 11001FR-D – Operator’s Stool (High Height) 360° adjustable body support arm Adjustable Footring Standard Casters Standard 1101FRA-D – Assistant’s Stool 360° adjustable body support arm Casters Standard 11001B-D – Operator’s Stool Contoured 13” wide x 8.5” high x 1” thick backrest Casters Standard