The Midmark Operator Stools are not only engineered to deliver premium styling and exceptional comfort, they are also ergonomically refined to address musculoskeletal pain common in dentistry. Seating system offers a contoured seat with raised front to improve weight distribution and overall comfort, promoting a more balanced posture Comfort is also enhanced with waterfall front edges that reduce pressure on the back of the thighs Assistant’s stool offers an optional ratcheted backrest, a ratchet release body support with height adjustment and an integrated footrest that automatically adjusts with the seat height Specifications Seat size: 16.25" x 16" Optional ratcheted backrest for intuitive height adjustment without knobs Ratchet release body support with height adjustment Integrated footrest, automatically adjusts with seat height Cylinder height: Standard 21.7" - 27.5"or Short 17.8" - 20.8" Upholstery available in Silhouette and optional Ultraleather™