2.1. Base
– Ø 710 mm five-star black polyamide (TS36),
– Ø 710 mm five-star light grey polyamide (TS36-G),
– Ø 710 mm five-star polished aluminium (ST64-POL).

2.2. Castors
Ø 60 mm black plastic self-braking castors for soft floors (ESH60) as standard, or hard floors (ESHH60) as an option.
Ø 60 mm light grey plastic self-braking castors for soft floors (ESH60-G) or hard floors (ESHH60-G), both as an option.

2.3. Mechanisms
FS Synchronous mechanism – functions:
– free-floating – synchronous backrest and seat tilt,
– backrest tilt angle of 20 ° synchronized with the seat tilt angle of 11 °,
– backrest multi-lock in 5 positions,
– backrest tilt force adjustment with a knob,
– seat depth adjustment 50 mm – as an option (FST),
– Anti-Shock – a feature that controls chair backrest to avoid hitting user's back after releasing the lock,
– smooth height adjustment of chair with pneumatic gas lift.

2.4. Seat, backrest, headrest
As standard, the upholstery type and colour is the same for each upholstered element.
2.4.1. Seat
Upholstered seat – structure made of 7-layer plywood, thickness 10,5 mm, covered with injected foam, thickness 46 mm, density 67 kg / m³.
2.4.2. Backrest
Upholstered backrest with cover (UPH/P) – structure made of 6-layer plywood, thickness 9 mm, covered with injected foam, thickness 25 mm, density 90 kg / m³. Backrest cover made of black or light grey polypropylene (PP).
Height adjustment 70 mm, lockable in 5 positions with a button placed in lower part of backrest.
Backrest connector – made of steel sheet, thickness 8 mm.
Manual lumbar support (LUH2) – integrated with backrest – colour matching backrest cover, height adjustment in range of 50 mm.
Mesh backrest (MESH) – frame made of black or light grey glass fiber reinforced polyamide (PA + GF).
Height adjustment 70 mm, lockable in 8 positions with a button placed on backrest connector.
Backrest connector – made of steel sheet, thickness 8 mm.
Manual lumbar support (LU4) – made of glass fiber reinforced polyamide (PA + GF) – colour matching backrest frame, height adjustment in range of 20 mm and depth adjustment in range of 15 mm.
2.4.3. Headrest
Adjustable, upholstered headrest with cover (HRUA3) – structure made of polypropylene (PP), covered with injected foam, thickness 50 mm, density 55 – 60 kg / m³.
Headrest cover made of black or light grey polypropylene (PP).
Headrest supporting element made of black or light grey glass fiber reinforced polyamide (PA + GF).
Adjustment range:
– height adjustment 100 mm,
– lock in 11 positions,
– depth adjustment 20 mm,
– headrest pad rotation 70 °.
Headrest cover and supporting element colour matches backrest frame finish.