Office armchair with wood or steel 5-stars base fitted with castors which adapt to all kinds of flooring. It is rotating and gas height adjustable by pulling the lever under the seat. It has a “Syncron” turning mechanism for a great comfort. Birch shaped wooden structure and non-deformable foam rubber padding with dacron covering. The smallest version is the model POLARIS CONFERENCE (backrest height 105/112). Available in all natural ox leathers of “Mascheroni Leather Colour Sytem” collection. Each Italian handmade Mascheroni product is marked with a plate engraved with the brand "Mascheroni srl Made in Italy" which certifies its authenticity.