Office chair ProActive - TWHEELS
Delivery: Immediate
Ideal for home office and office
- Ergonomic air-mesh back design ensures constant air circulation & freshness
- Synchronous mechanism (30° tilt) + gas lift height adjustment: active sitting, perfect posture
- Continuously adjustable lumbar support & padded headrest (removable) relieve spine and neck
- 3-D armrests (height, width, angle) reduce shoulder and wrist strain
- Steel frame & SGS-tested gas lift support up to 120 kg – maximum safety
- PU-coated casters + 360° rotation: silent, floor-friendly mobility
- Assembled in 10 minutes – tool kit included
- 2 years limited warranty
*Summer discount on all orders & while supplies last.
Included
✓Seat & back module pre-assembled
✓5-star base
✓Gas lift
✓3-D armrests
✓Headrest
✓Tool kit
✓Printed manual
Material | Steel frame, polyamide base, breathable Air‑Mesh |
Mechanism | Synchronous mechanism (30° tilt) with stepless weight adjustment |
Seat height | 44 – 54 cm (Gaslift Class 4) |
Seat depth | 46 – 51 cm (slidable seat cushion) |
Backrest | Air‑Mesh 46 × 56 cm, 90° – 120° tilt |
Armrests | 3-D (height 17 – 22.5 cm, width 44 – 48 cm, angle) |
Headrest | Height & angle adjustable, softly padded |
Lumbar support | Height & depth adjustable, integrated support pad |
Casters | PU-coated, for hard & soft floors, Ø 60 mm |
Rotation | 360° freewheel |
Max. user weight | up to 135 kg (new ProActive series, internally tested) |
Product weight | 18 kg |
Dimensions (W × D × H) | 66 × 66 × 115 – 130 cm (depending on seat & back position) |
Assembly time | Ø 10 minutes, tool kit included |
Warranty | 2 years limited (first buyer) |
EAN | 7649999999999 |


Steplessly adjustable backrest, height-adjustable seat surface, and movable armrests – for an optimal posture during every activity.

Smooth-running casters, 360° rotation, and easy assembly – the TWHEELS office chair adapts to you and your everyday life.
For pupils & students
For focused learning without posture damage
For home office & office
For everyone who spends many hours at the desk - and wants to relieve their back
For gamers & creatives
For everyone who values comfort and mobility while sitting
For everyone who values quality
Durable, functional and in a modern look - this chair fits into any environment

Adjustable ergonomics - Sit as you need
Whether upright for working or relaxed leaning back for thinking – the TWHEELS office chair can be individually adjusted. Backrest, seat height, and armrests are flexibly adjustable – for maximum comfort in every position.

Comfortable material – breathable & durable
The breathable mesh back material ensures pleasant air circulation, even on long days. The seat surface is comfortably padded and the cover is durable – for many years of worry-free sitting.

Secure stance - mobile & stable at the same time
The stable base and smooth-rolling casters offer you full freedom of movement without compromising safety. Ideal for smooth floors, carpet, or even gaming mats.


Design meets function – suitable for every room
Simple black, modern lines, compact form: The TWHEELS office chair looks good in any room – whether youth room, office, or gaming setup.

FAQ
What is included in the delivery?
- TWHEELS office chair ProActive
- Seat & back module pre-assembled
- 5-star base
- Gas lift (Class 4)
- 3-D armrests
- Headrest
- Tool kit for assembly
- Printed manual (DE/FR/IT/EN)
How is the office chair delivered?
- The delivery is made in one package.
- Shipping service providers: Swiss Post & GLS
What mass and weight does the package have?
- Dimensions: approx. 68 × 68 × 60 cm
- Weight: approx. 24 kg
For which body height and seat height is the chair suitable?
- The seat height can be adjusted from 44 – 54 cm (Gaslift class 4). This generally covers body heights of approximately 160 – 200 cm and meets the requirements of DIN EN 1335.
What is the maximum load capacity?
- SGS-tested steel frame & gas lift support up to 135 kg.
- This means the chair exceeds the usual 110 kg of DIN EN 1335.
How long does the assembly take?
- Thanks to the pre-assembled seat & back module, the chair is ready for use in approx. 10 minutes. The assembly tool is included in the delivery.
Which rollers are installed – and are there replacement rollers for hard floors?
- Factory PU-coated universal rollers (Ø 60 mm) for hard & soft floors.
- Replacement/hard floor rollers with 10 mm or 11 mm pin can be reordered at any time through our support.
Is the chair ergonomically certified?
- The ProActive meets the essential requirements of DIN EN 1335 for office swivel chairs. Gas lift and components are SGS and BIFMA tested.
How do I properly clean and maintain the chair?
- Regularly vacuum with a soft vacuum cleaner attachment.
- Remove stains with a slightly damp microfiber cloth and mild soapy water – do not use solvents.
- Let mesh back dry in the air, do not blow dry.
Instructions
Specifications
Material | Steel frame, polyamide base, breathable Air-Mesh |
Mechanism | Synchronous mechanism (30° tilt) with stepless weight adjustment |
Seat height | 44 – 54 cm (Gaslift Class 4) |
Seat depth | 46 – 51 cm (slidable seat cushion) |
Backrest | Air-Mesh 46 × 56 cm, 90° – 120° tiltable |
Armrests | 3-D (height 17 – 22.5 cm, width 44 – 48 cm, angle) |
Headrest | Height & angle adjustable, softly padded |
Lumbar support | Height & depth adjustable, integrated support pad |
Casters | PU-coated, for hard & soft floors, Ø 60 mm |
Rotation | 360° freewheel |
Max. user weight | up to 135 kg (new ProActive series, internally tested) |
Product weight | 18 kg |
Dimensions (W × D × H) | 66 × 66 × 115 – 130 cm (depending on seat & back position) |
Assembly time | Ø 10 minutes, tool kit included |
Warranty | 2 years limited (first buyer) |
EAN | 7649999999999 |