Sturdy robot-welded steel frame, robust paddings. Height adjustment: 46-56 cm. Height of the backrest: 66 cm (+ neck rest). Seat depth 49 cm. Width of the seat: 53 cm. Width of the aluminium cross base: 70 cm. Backrest depth quick adjustment. Liftable and adjustable armrests. Rocking lock, safety lock and resistance adjustment according to the user. The leather Comfort neck rest with versatile adjustments. Also available without neck rest. Casters either soft or hard, depending on the floor type (soft casters for hard floor material). Fabric or leather upholstery. Fabric upholstery: Xtreme Plus with abrasion resistance of 100.000 Martindales, or 24/7+ fabric with an outstanding abrasion resistance of 500.000 Martindales. Leather upholstery is hygienic and easily cleaned. Black fabric and leather upholstery also with White Line quilting.