Seat cover material: polyester fabric, 50 000 Martindale’i. Back and headrest are covered with polyester mesh fabric, which ensures good ventilation. Mechanisms and adjustments: auto tilt-tension synchronized mechanism self adjusts recline force to user’s weight. Adjustable lumbar support. Adjustable seat depth 39,5-47,5cm, pneumatic seat height adjustment. 3-way adjustable black plastic armrests: height adjustment 17,5-28cm, depth and angle adjustment. Adjustable head rest height. Black 5-prong plastic base D70cm, 50mm plastic castors. Dimensions: height 116-130,5cm, back rest height 52,5cm (with head rest 72-76,5cm), seat height 44-54cm, seat depth 39,5-47,5cm, seat width 45cm. Max weight capacity 120kg.