Height adjustable office chair Ahrend by Cirkel year 70

Cirkel ahrend height-adjustable office chair, 70s, netherlands. Non-swivel armchair. Office chair with armrests with central leg and black steel structure and black imitation leather seat/backrest. Ideal for an individual: office, bedroom, living room... And professional: waiting room, coworking, meeting, bar, restaurant, school... Very good condition, some traces of use. Width: 40cm. Depth: 40cm. Minimum seat height: 40cm. Maximum seat height: 59cm.