Office chair Topstar U50 Black — ergonomic swivel chair with adjustable height

Topstar U50 Black is an ergonomic swivel office chair designed for everyday workplace use. The chair combines a contoured seat and backrest with adjustable seat height to provide support during prolonged sitting. A five-star base with smooth-rolling casters allows easy repositioning across office floors, while the compact silhouette fits both home offices and professional workspaces.

Advantages

The design of the Topstar U50 Black offers balanced lumbar support and a shaped seat that help maintain a natural sitting posture. Height adjustability makes it compatible with various desk heights and user statures, and the swivel mechanism enables unrestricted movement around the workspace. The five-star base with casters provides stable support and simple mobility without the need to lift the chair.

Suitable for

• Home office workstations
• Corporate office desks and meeting rooms
• Study zones and student desks
• Reception and administrative areas

Key specifications

• Type: Ergonomic swivel chair
• Adjustment: Pneumatic seat height adjustment
• Base: Five-star base with casters for mobility
• Seat and back: Contoured design for support during prolonged sitting
• Use: Designed for everyday office and home office use
• Color: Black

How to use

Adjust the seat height using the lever under the seat so that your feet rest flat on the floor and your thighs are approximately horizontal. Sit back so the contoured backrest supports the lumbar area. Use the swivel function to reach items around your desk without twisting the torso; roll the chair on its casters to move between workstations. Regularly check caster movement and clean surfaces to maintain smooth operation.

Usage recommendations

For prolonged comfort, combine the Topstar U50 Black with an adjustable desk and take regular short breaks to stand and stretch. Ensure the chair is used on suitable flooring or a protective mat to preserve casters and base condition.