Aeris Swopper: German ergonomic/active stool

Aeris Swopper stool for sale:

Office or home ergonomic/active stool.

Lightly used and in very good condition.

One small scratch on base (visible in first image, left of lower centre), and very light scuffing in a few other areas of base.

Seat is in excellent condition. 

Brief description: active stool, foam seat with black leather cover, die-cast aluminium base with black metallic finish.

Current retail price (new) is about £740.

Full description:

This is a popular award-winning German ergonomic stool which provides a healthy and active way of sitting. 
The Swopper stool rotates, bounces and tilts, which enables the sitter to maintain a good posture 
during desk activities, and enjoy some core exercise throughout the working day!

The Swopper is adjustable in 3 ways: seat height, spring stiffness (firm to very bouncy) 
and tilt resistance (minimal to generous lateral motion).

Technical specifications:

Weight: 11kg
Supported weight range: 50 - 120kg
Seat height range (loaded): 45 - 59cm
Seat diameter: 40cm
Base diameter: 55cm
Seat fabric: high quality leather, a beautiful surface embossing which also offers optimal seating comfort; the soft leather is easy to clean, breathable and stands out for its antistatic properties.