Designed for long working hours, the Expert 9.8 combines advanced adjustment mechanisms with durable materials. Thoughtful design and extensive adjustments allow you to customize your chair for all-day support and comfort.

The Expert 9.8 offers a backrest height adjustment of up to 65 mm and a four-stage lumbar support angle setting. This makes it easy to adjust the support point to the natural curvature of your back, improving posture and reducing tension in the lower spine.

Infinitely tilting the backrest up to 140° with the ability to lock in five positions allows you to find a comfortable angle for both work and rest. The system gives stable and smooth support when changing positions.

The Slide function allows you to move the seat by about 5cm, allowing you to adjust the depth under your thighs and improve sitting comfort regardless of your height.

The extended armrests allow you to adjust the height, angle, distance and depth, giving you full control over the position of your arms and reducing tension in your shoulders while working.

The raised front edge of the armrests facilitates a perfect fit on the desk, improving keyboard work and reducing forearm fatigue.

The extendable footrest gives you the opportunity to comfortably stretch your legs during a break, promoting relaxation and recovery without having to leave your workstation.

Three-dimensional headrest adjustment (height, tilt, depth) allows you to precisely adjust head and neck support, reducing the risk of strain and neck pain.

Class 4 gas actuator (100mm adjustment range) ensures safe raising and lowering of the seat. The 6.5 cm diameter polyurethane-rubber wheels move quietly and do not scratch the surface.

Aluminum frame and star guarantee stability and long life of the product. On the back of the backrest there is a discreet aluminum coat or bag hanger - a convenient solution for the office and study.



| Manufacturer | Mark Adler |
|---|---|
| Model | Expert 9.8 |
| Material | mesh HD fabric; aluminum (star, frame, footrest mount, hanger) |
| Gas actuator | bIFMA class 4, range 100 mm |
| Wheels | polyurethane-rubber, Ø 6.5 cm |
| Maximum load | 180 kg |
Data sheet
Specific References