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Chelsea C.
Model: M903
Chair Type: Ergonomic High-Back Swivel Office Chair
Color: Black
Material: Breathable mesh back and seat, durable plastic frame, metal base
Seat Material: High-density foam with breathable mesh upholstery
Weight Capacity: Up to 330 lbs
Product Dimensions:
Seat Width: ~17.9 inches
Seat Length: ~18.1 inches
Chair Height: ~27.6 - 31.5 inches
Leg Width & Length: ~24.4 inches
Net Weight: ~40 lbs
You can try our products risk-free with our 30-day Money-Back Guarantee. If you are not completely satisfied, simply return it for a full refund.
Correcting posture and relieving joints to improve your welfare and care for yourself
Smart and cool design to suit office and home settings
Tailor to your sitting preferences, arms, back, and chair adjusts
Comfortable material designed to allow for better atmosphere
Easy to build, designed to last and hold on
1. 🛠️ How It Works
Our Ergonomic Office Chair is designed to adapt to you — not the other way around. Here's how each feature works together to deliver all-day comfort and support:
2. 🔄 Adjustable Lumbar Support
Use the easy-slide lumbar control to position the lower back support exactly where you need it. It helps maintain healthy spine alignment and reduces lower back strain during long hours of sitting.
3.📏 Custom Seat Height & Tilt
A smooth gas lift lets you raise or lower the seat with a simple lever to match your desk height. The tilt function allows you to recline and lock the backrest at your preferred angle, reducing pressure on your hips and thighs.
4. 🪑 Flexible Headrest & Armrests
Adjust the headrest up/down and tilt to cradle your neck and head while leaning back. The armrests move vertically to match your posture and reduce shoulder tension.
LF HARMONY offers products speciified to create more flexibility and alleviate stress from the body and mind. Each item is thoughtfully engineered to fulfill our niche of administering as much convenience in one's life as possbile with great performance and benefits.
Finds the chair well built and affordable
Sitting posture improved using this chair
Feels less sore and strained after working or playing
You can try our products risk-free with our 30-day Money-Back Guarantee. If you are not completely satisfied, simply return it for a full refund.
Rated 4.8/5 by 1,200 Happy Customers
A: Yes, the seat height can be easily adjusted to fit a range of desk heights and user preferences using the lever located under the seat.
A: Yes! The chair features built-in lumbar support that can be adjusted vertically to align with your lower back and provide all-day support.
A: The chair supports up to 330 lbs. (149.6kg) thanks to its sturdy base and durable frame construction.
A: The headrest is adjustable in both height and angle to support your neck and head properly. It is not designed to be removed.
A: Assembly typically takes about 15–25 minutes.
