Ergohuman Mid-Back Leather Executive Chair: This innovative, modern, ergonomic chair combines complete functionality with optimal comfort. The Ergohuman Mid-Back Executive chair features a synchro-tilt mechanism that allows for smooth, controlled adjustments while keeping your body in an ergonomically correct position. Versatile casters allow for nice movement on carpeted or hard surfaces. Includes 3 Position Tilt Lock, Back Height Adjustment and Seat Depth Adjustment. This model lacks the Egronomic Headrest, see headrest model RAYLE9ERG. Overall Size: 26"W x 27.5"D x 46-51"H. Seat: 19.5"W x 15.5-17.75"D. Back: 21.25"W x 27.5-29.5"H. Weight: 66 lbs. Usually ships within 24-72 hours! Assembly required.