Ergonomically shaped backrest. Solid armrests with elegant design applications. Thick seat padding with abrasion-resistant cover, rounded front edge of the seat. Rocking mechanism - The resistance when leaning back can be individually adjusted to the weight of the user via a rotary knob located beneath the seat and can be locked in an upright position. A stylish and stable black plastic base. Equipped with load-dependent braking multifunctional wheels, suitable for all types of flooring. This means the chair only rolls under load; in an unloaded state, the wheels brake to prevent unwanted rolling away. This item is delivered disassembled. Assembly can be completed in a few simple steps. No assembly is required for gas springs, chair wheels, footrests, etc.