Traditional Pneumatic Stools Designed for Comfort. Our pneumatic stools feature a contemporary design, stylish comfort, and select options that meet the needs of any office. The 11001 Series is available in cloth or vinyl and is crafted to meet exceptionally high performance, safety, and durabilty standards. This traditionally designed, ergonomic pneumatic stool was developed for comfort. PRODUCT BENEFITS Comfortable 16" wide, 4" thick poly-foam seat cushion Optional Contoured Backrest Easy to use, chrome pneumatic height adjustment