Comfortable professional orchestra chair with upholstered seat and backrest. Cushioning and fabric (Trevira CS) are made from inherently fire-resistant materials. The black fabric has a durability rating of 100,000 abrasion resistance cycles. The black powder-coated base is made from sturdy steel tubes with 2 mm wall thickness. The pneumatic seat height adjustment is variable using a release lever. The height of the backrest and the seat angle are also adjustable. The product has the following useful features: low-noise plastic glides, stacking grooves and stacking protection. The rounded seat cushion with ventilation holes and the breathable foam provide for comfortable seating