Topstar Sitness SI69 G20 Ergonomic Standing Stool, Height-Adjustable 43-56 cm, Black Polyolefin Seat, Rubberized Round Base, GS-Tested

With a stepless gas spring offering 13 cm of height adjustment from 43 to 56 cm, the Topstar Sitness SI69 G20 transforms static sitting into an active, posture-promoting experience. The 37 cm diameter seat is crafted from 100% polyolefin in a deep black finish, while the round polyamide base rides on rubberized glides for secure placement on any floor.

Overview

Engineered in Germany, this ergonomic stool is a standing aid and dynamic sitting solution in one. It encourages subtle, continuous movement that strengthens core muscles and relieves spinal pressure. The robust construction supports up to 110 kg and is certified GS-tested for safety and quality.

What stands out

• Stepless height adjustment from 43 to 56 cm for personalized comfort
• 100% polyolefin seat – durable, easy to clean, and recyclable
• Rubberized glides on the base prevent slipping and protect floors
• Promotes active posture and dynamic sitting for up to 4 hours daily
• GS-tested for verified safety and ergonomic performance

Technical details

• Seat diameter: 370 mm
• Base diameter: 508 mm
• Base material: polyamide
• Maximum user weight: 110 kg
• Recommended daily use: up to 4 hours
• Assembly: self-assembly required
• Country of manufacture: Germany

Our verdict

The SI69 G20 is a smart investment for anyone seeking to reduce the strain of prolonged sitting. Its compact footprint and dynamic design make it ideal for offices, studios, and home workspaces where movement matters.