Key/B Conference Chair. Aluminium armrests with matching colour elbow-rest. Padded cold foamed fire-retardant and CFC free single frame with tubular steel insert and drawn plates to strenghten and fix elements such as knee-tilt ,plates with automatic return and armrests. Armrests in pressure die-cast aluminium or completely upholstered for the high and medium backrest version, steel rod armrests for the low backrest version. Knee-tilt mechanism in aluminium with polished finish casing, back resistance adjustment according to user weight with side telescopic lever and antishock locking/unlocking device. Key is available with a die cast aluminium base with 5-spokes, with dual-tread self-locking, rubber-coated swivel castors Ø 60 mm, or in a 4-spoke version with feet. Slide frame with medium backrest is in a steel plate, low backrest version has a steel rod frame with or without armrests. Fabric, leather or eco-friendly leather upholstery.