The seat and backrest are upholstered with specially made leather or a wide range of coloured fabrics. Both the seat and the backrest are connected with a nylon j-bar, incorporating the function of backrest height adjustment. The round handle at the bottom of the backrest allows effortless adjustment of the degree of lumbar support. The “Epron Plus Flex” synchro mechanism with “Anti-Shock” function has 5 operating positions. Additionally, the mechanism allows adjustment of negative seat tilting, seat sliding, regulation of backrest tilt angle and recline stiffness. Several armrests are available – black plastic 4D adjustable, black or chrome-plated metal 3D adjustable . For the base, there is an option of black polyamide or polished aluminium. The castors (65 mm) are suitable either for soft or for hard flooring.