In stock
M57 Ergonomic Office Chair with 3 Way Armrests Lumbar Support and Adjustable Headrest High Back with Tilt Function (Black)
$344.98
- 【Features】SIHOO ergonomic chair with adjustable headrest can make neck tilt easily and comfortably, adjustable lumbar support bracket for free adjustment of height depth, 3D adjustable armrest for different office applications, 90°-126° arbitrary backrest adjustment for multiple work positions, any switch 3.15 in lift, 360 ° Freedom to rotate freely 3D handrail.
- 【Ergonomic design】SIHOO ergonomic office chair is recommended by Ergonomics Application Association. SIHOO’s ergonomic design is based on the human body dynamic digital model. The ridge backrest and the human spine are exactly the same. The close fitting helps release the spinal pressure. The flow waterfall arc seating design Thigh support is comfortable, SIHOO will make you more comfortable.
- 【Material】Our home office desk chair aluminum base is stable and durable, bearing quality is good. Silent casters move freely without noise. Double back frame design, stable and durable.
- 【Design】SIHOO is the crystallization of the common wisdom of many professionals in human body, physiologist, product designer, mechanical engineer，does its best to make every step comfortable and safe for every customer. Every small part has strict safety quality testing. Cushion impact test, handrail fatigue test, chair foot static pressure test, in line with the strict standards of office chair.
- 【Warranty】Product warranty period is three years. If there is any quality problem, please contact us. After confirming, we will change the accessory for you. We promise to provide you with zero profit product accessories within three years of the warranty period.
Product Description
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
SIHOO Ergonomic Office Chair
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Customer Reviews
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4.3 out of 5 stars 7,179
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4.2 out of 5 stars 152
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4.4 out of 5 stars 14,965
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4.2 out of 5 stars 1,692
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4.2 out of 5 stars 172
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4.3 out of 5 stars 985
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Price
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$229.99$229.99 | $259.99$259.99 | $127.48$127.48 | $149.99$149.99 | $299.99$299.99 | $319.99$319.99 |
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Headrest Type
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2D | 55”x28” Whole-Piece Desktop | 2D | 2D | Integral headrest | 3D |
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Armrest Type
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3D | Adjustable Height:28.3-47.2″ | 2D | 3D | 4D | 3D |
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Recline Angle
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110°-116°-126° | Double Cross-beam Structure | 108°-118°-128° | 110°-130° | 98°-135° | 92°-100°-112° |
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lumbar Support
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2D | 132LBS Max Load | 2D | Split 2D Lumbar Support | Dual Dynamic Lumbar Support | Dynamic Lumbar Support |
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Seat Width
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51 cm（20.08″） | Ultra Quiet Design<50dB | 51cm（20.08″） | 52cm（20.47″） | 51 cm(20.08″) | 51 cm（20″） |
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Seat Depth
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46 cm (18.11″) | 30,000 lifting tested | 45 cm（17.91”） | 48 cm (18.9″) | 38.5-43.5 cm(15.16-17.13″) | 42 cm (16.54″) |
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Backrest Height Adjustment
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/ | Colors: Black, Walnut, Oak | / | / | 5-segment adjustment | 4-segment adjustment |
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Seat Height
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46-55 cm（18.11″-21.65″） | / | 44-54 cm（17.32”-21.26”） | 45-54 cm（17.72″-21.26″） | 46-54 cm（18.11″-21.26″) | 41-49.5 cm（16.14″-19.49″） |
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Overall Height
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107-123 cm (42.12″-48.42″) | / | 109-127 cm（42.91”-50.00”） | 117-126 cm(46.06″-49.60″) | 112-127 cm(44.09″-50″) | 107-128 cm (42.13″-50.40″) |
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Service
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Lifetime Service | motor:1-year;whole desk:3-year | Lifetime Service | 3 Year | 3 Year | 3 Year |
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All orders ship fast and FREE!
Most products ship within 1–2 business days and are delivered within 2-5 business days from date of purchase!
Large or heavy items (like couches) may take 2–4 weeks for delivery via dedicated freight.
We do made-to-order handcrafted hardwood furniture right here in the USA as well. See some examples here! These projects are delivered within 6–8 weeks from date of purchase. Progress photos and consultation are had through the process. Check out this short video clip to see our custom furniture process!
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