Topstar Sitness High Bob Ergonomic Stool, Black Polyester Seat, Stepless Height Adjustment 580-830 mm, Polished Aluminum Ring Base, 110 kg Capacity SU59 BR0

With a stepless gas spring that adjusts from 580 to 830 mm, the Topstar Sitness High Bob transforms any standing desk or high counter into a dynamic workspace. The 400 mm seat in 100% polyester encourages active sitting, engaging core muscles and promoting better posture throughout the day.

Overview

The Sitness High Bob is an ergonomic stool designed for active sitting. Its Sitness technology allows the seat to move in all directions, strengthening back muscles and improving circulation. The polished aluminum ring base with glides provides stability on hard floors, while the black polyester seat offers durability and easy cleaning. Suitable for office, home office, standing desk, or counter use, this stool supports up to 110 kg and is GS-tested and TÜV Rheinland certified.

What stands out

• Stepless height adjustment from 580 to 830 mm via gas spring
• Active sitting design with Sitness technology for dynamic movement
• Durable 100% polyester seat in black, 400 mm diameter
• Polished aluminum ring base with glides for stability
• Maximum load capacity of 110 kg
• GS-tested and TÜV Rheinland certified for safety
• Minimal assembly required

Technical details

• Product type: Ergonomic stool / standing aid
• Seat material: 100% polyester
• Seat colour: Black
• Seat diameter: 400 mm
• Height adjustment type: Stepless gas spring
• Minimum seat height: 580 mm
• Maximum seat height: 830 mm
• Base type: Ring base
• Base material: Polished aluminum
• Mobility: Glides (no castors)
• Maximum load capacity: 110 kg
• Ergonomic features: Promotes dynamic sitting, strengthens back muscles, improves posture
• Certifications: GS-tested, TÜV Rheinland
• Recommended use: Office, home office, standing desk, counter
• Assembly required: Yes (minimal)

Our verdict

The Topstar Sitness High Bob is a premium active sitting solution that combines robust construction with ergonomic benefits. Its stepless height adjustment and dynamic seat movement make it ideal for users who alternate between sitting and standing, helping to reduce fatigue and improve productivity. With a sleek polished aluminum base and durable polyester seat, it is both functional and stylish.