- Medium or low backrest,
- Synchron mechanism (MB) or permanent contact (MC),
- Gas shock absorber,
- Swivel base with slippers (or casters by request),
- Feet support in black polymer or stainless steel,
- Seat and back upholstered in artificial leather, fireproof artificial leather, genuine,
atlas fabric, fireproof crepe fabric, TU, TM, Favu A mesh or Favu R mesh