Power Input USB 5V DC / 2,1A Materials scratch resistant PU leather Padding cold molded foam Mechanism Butterfly Armrest 3D adjustment Gaslift Class 4 Base material metal Castor size 60 mm Castor material nylon core coated with a soft polyurethane Backrest adjustment 90°- 150° (swing 90° - 105°) Seat height from 44 up to 51 cm Load capacity 120 kg