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Topstar office chair Open X, black, height adjustable
€178,96
incl. VAT
€147,90 excl. VAT (21%)
Price excluding shipping costs: €4,95 incl. VAT for orders under €49,95. From €49,95 we ship for free.
✗ Not in stock
Expected from supplier: week 48 (23 November - 29 November 2026)
Brand: Topstar
| Article number | 77400124 |
|---|---|
| EAN | 4014296742267 |
| OEM number | OX4000 T20 |
| Weight | 14,400 kg |
|---|---|
| Dimensions | B: 800 mm × H: 380 mm × D: 600 mm |
| Country of origin | Duitsland |
| Customs tariff (HS code) | 94013100 |
| VAT rate | 21% |
This is why Dex likes this article
This office chair effortlessly adapts to your working day. You adjust the backrest in height and angle to your own liking, so you stay comfortable seated for hours. With a load capacity of 110 kg, it offers firm support for every user.
When do you choose this product?
When do you choose a simple office chair?
The Topstar Open X is a practical office chair for everyday desk work, ideal if you are looking for basic comfort without unnecessary features. This chair is suitable when you want to set up a reliable workstation without spending too much on extensive ergonomic options. The 100% polypropylene material makes the chair easy to maintain and suitable for a range of working environments.
Why choose these compact dimensions?
With a seat size of 480 x 480 mm, this chair offers enough room for most users without taking up too much space. The height adjustment between 420 and 570 mm means you can adapt the chair to different body heights. This compact size fits well in smaller workspaces or home offices where every square centimetre counts.
Practical adjustment options for daily use
The backrest is adjustable in both height and tilt angle, so you can find a working posture that suits your way of working. The backrest is 580 mm high and features a laminated cushion for basic comfort during longer work sessions. The stepless height adjustment makes it easy to quickly set the right seat height.
Check the load capacity and upgrade options
This chair has a maximum load capacity of 110 kg, which is suitable for most users. If you later want more arm support, you can add optional P4 armrests (article number 77400128). The black polyamide base provides stability and matches the chair's overall black finish.
The Topstar Open X is a practical office chair for everyday desk work, ideal if you are looking for basic comfort without unnecessary features. This chair is suitable when you want to set up a reliable workstation without spending too much on extensive ergonomic options. The 100% polypropylene material makes the chair easy to maintain and suitable for a range of working environments.
Why choose these compact dimensions?
With a seat size of 480 x 480 mm, this chair offers enough room for most users without taking up too much space. The height adjustment between 420 and 570 mm means you can adapt the chair to different body heights. This compact size fits well in smaller workspaces or home offices where every square centimetre counts.
Practical adjustment options for daily use
The backrest is adjustable in both height and tilt angle, so you can find a working posture that suits your way of working. The backrest is 580 mm high and features a laminated cushion for basic comfort during longer work sessions. The stepless height adjustment makes it easy to quickly set the right seat height.
Check the load capacity and upgrade options
This chair has a maximum load capacity of 110 kg, which is suitable for most users. If you later want more arm support, you can add optional P4 armrests (article number 77400128). The black polyamide base provides stability and matches the chair's overall black finish.
Specifications according to the manufacturer
Office chair "Open X (P)"
Modern, trendy office chair with open back frame
• Upholstery: 100% polypropylene
• newly designed "Window" backrest with laminated upholstered cushion
• ensures a pleasant sense of well-being for the back
• adjustable in height and tilt
• black, comfortable flat seat with rounded front edge (knee roll)
• synchro mechanism, for synchronised adjustment of seat and backrest tilt
• backrest tilt and seat tilt follow the movements of the seated person
• adjustable to the respective body weight, lockable with safety release
• stable black plastic five-star base
• load-dependent braked safety twin castors for carpeted floors
• seat height adjustment with top lift
• armrest height: 580 mm
• seat dimensions: (W)480 x (D)480 x (H)420 - 570 mm
• optional armrests type P4(OPA) (not included in delivery)
Note: Products listed as accessories are not part of the chair and are not included in the delivery!
Sitting time recommendation: unlimited use
- Recommended for intensive use in commercial / private environments
- Use without restriction
- high seating comfort
- high ergonomic specification
- EN 1335 1-3 and GS-tested
Modern, trendy office chair with open back frame
• Upholstery: 100% polypropylene
• newly designed "Window" backrest with laminated upholstered cushion
• ensures a pleasant sense of well-being for the back
• adjustable in height and tilt
• black, comfortable flat seat with rounded front edge (knee roll)
• synchro mechanism, for synchronised adjustment of seat and backrest tilt
• backrest tilt and seat tilt follow the movements of the seated person
• adjustable to the respective body weight, lockable with safety release
• stable black plastic five-star base
• load-dependent braked safety twin castors for carpeted floors
• seat height adjustment with top lift
• armrest height: 580 mm
• seat dimensions: (W)480 x (D)480 x (H)420 - 570 mm
• optional armrests type P4(OPA) (not included in delivery)
Note: Products listed as accessories are not part of the chair and are not included in the delivery!
Sitting time recommendation: unlimited use
- Recommended for intensive use in commercial / private environments
- Use without restriction
- high seating comfort
- high ergonomic specification
- EN 1335 1-3 and GS-tested
Specifications
Version
without armrests
Seat upholstery
Polypropylene
Seat colour
black
Load capacity
110 kg
Manufacturer
Hazard information
No hazard classification applies according to the available manufacturer and supplier information.
This product contains no substances classified as hazardous under the CLP Regulation.
This product contains no substances classified as hazardous under the CLP Regulation.
Product information checked by XtremeOffice
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 30-10-2026.
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 30-10-2026.
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