Office chair with the seat upholstered in fireproof fabric on an injected foam interior. Height-adjustable seat by means of a gas piston. Backrest upholstered in breathable black mesh with lumbar support to adapt the backrest to the curvature of the back and avoid ailments. Synchronous backrest tilt system with travel locking lever at any point. Knob for voltage regulation when tilting the backrest. Technical polymer base with great strength and stability. Standard arms adjustable in height. Recommended for 8 hours of work and a maximum weight of 125kg. Accepts rd-917 parquet wheels. Easy assembly Office chair with the seat upholstered in fireproof fabric on an injected foam interior and adjustable in height by means of a gas piston. Backrest upholstered in breathable black mesh with lumbar support to adapt the backrest to the curvature of the back and avoid ailments. Height (inches) - 1000-1090