EG400 Ergonomic Office Chair
The EG400 Ergonomic Office Chair is designed to deliver superior comfort, durability, and professional support for demanding office environments. Featuring a square high back with excellent lumbar support, this fully ergonomic operator chair is equipped with a three-lever mechanism allowing precise adjustments to the gas lift, seat pan, and backrest tilt. Its heavy-duty commercial-grade construction, paired with a five-way nylon base and twin-wheel casters, ensures stability and smooth mobility throughout the workday. Upholstered in navy blue fabric, the EG400 combines sleek styling with AFRDI certification and a 130kg weight rating, making it a reliable choice for long-term use. Backed by a 10-year factory warranty and optional adjustable arms, it offers confidence, flexibility, and lasting performance for modern workplaces.
Product Benefits:
- Fast Delivery
- Square Back – great lumbar
- Back angle tilt
- Gas Lift height adjustment
- Seat angle tilt
- Adjustable Arms Optional extra
- 5 way heavy duty nylon base
- Roller point twin wheel casters
- Heavy Duty Commercial Grade Square Back Operator Chair – Navy Blue Fabric
- 3 Lever Fully Ergonomic Mechanism: Gas Lift, Seat Pan and Back Rest Tilt
- 5 Way Black Base With Castors
- AFRDI Certified
- Weight rated 130kg
- 10 Year factory warranty
- Seat Width: 520mm
- Seat Depth: 480mm
- Seat Height: 480-620mm
- Back Width: 450mm
- Back Height: 500mm
- Overall Width: 510mm
- Overall Depth: 520mm
- Overall Height: 960-1080mm

CLICK HERE FOR ASSEMBLY INSTRUCTION
Optional Amazing X-Wheel Ball Bearing Wheels:
1 – Standard Rubber wheel
2 – RGB / LED Light up in wheel while in use
X-Wheel Blade Casters represent a breakthrough in seating technology and comfort. Just like a building, a chair is only as good as its foundation; and as a person, core stability is the key to health. The wheels on your chair are the foundation that creates core stability and leads to healthy, smooth, ergonomic movement. Featuring 100% rubberized blade wheels and a free ball-bearing core, X-Wheel Blade Casters are quieter and smoother. They work better on hardwood and pile carpet alike, and they are more gentle on tile, hardwood, vinyl, carpet, and almost any surface. Ball-bearing swivels spin easily, preventing scuffing and scratching. And they look great! Put, for a small investment, you can upgrade your chair’s performance and enhance your seating experience.Â
Key Benefits:
- Makes your chair roll with easeÂ
- Prevents user injury by making your chair easy to moveÂ
- Anti-Static properties prevent the build-up of static electricity and or reduce its effects so no more unsuspected zaps!
- Saves wear to carpet and other surface’sÂ
- 100% Rubberized blade wheels
- Quieter and smoother operation than traditional castersÂ
- Perfect to use on timber, vinyl, tiles, concrete, low pile carpet & much more
- Ball-bearing bracket core allows for easy, smooth swivel & spin
- Preventing scuffing and scratching
- The dual bearing core design will make your chair movement smooth and effortless.
- Manufactured with premium material
- Super Duty Metal bracket supports the wheel Â
- LIFETIME FACTORY WARRANTYÂ
X-Wheel Dimensions:

Please note: If X-Wheels are selected, the chair will sit higher than the standard configuration. This option increases chair height by approximately 20mm when replacing 50mm casters, or 10mm when replacing 60mm casters.
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