is it possible to remove the arms if I wanted to go arm-less?

you don't have to install the arms

Is there really a three-year warranty?

Yes, our chairs come with a three-year warranty, and you can contact our SIHOO team customer service with any problems with the chairs during this period.

What kind of table is this chair suitable for?

The armrests and seat of the chair are adjustable, and the height of the armrests from the ground is within the range of 24.8 inches - 28.7 inches, I hope this will help you to choose a table.

I'm getting what perceive to be conflicting answers. Does the chair back lilt with the seat or independently?

The seat does tilt back as you recline the back. However, it doesn't tilt at the same rate. Reclining the back all the way (back 30°) tilts the seat back by about 5-10°

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SIHOO M57 Ergonomic Office Chair, Mesh Back Desk Chair with 3D Armrests | Lumbar Support & Adjustable Headrest, Comfortable Computer Chair, Office Chair Hold 330 LBS, Home Office - Black

SIHOO M57 Ergonomic Office Chair, Mesh Back Desk Chair with 3D Armrests | Lumbar Support & Adjustable Headrest, Comfortable Computer Chair, Office Chair Hold 330 LBS, Home Office - Black

Product ID: 65046396

Details

Brand
SIHOO
Color
Black
Material
Mesh
Product Dimensions
30.31"D x x
Size
Pack of 1

🔄360° smooth swivel

🪑330 lbs max load capacity

🛠️3D adjustable armrests & headrest

¥173883

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖥️ Elevate your workspace, sit smarter, work stronger.

ERGONOMIC EXCELLENCE - Recommended by Ergonomics Association, the split backrest and waterfall seat edge reduce pressure and boost circulation for sustained focus.
WHISPER QUIET MOBILITY - Silent, smooth-rolling casters glide effortlessly on hard floors—no distractions, just seamless movement.
BUILT TO LAST SUPPORT - Reinforced aluminum base and dual-frame backrest ensure rock-solid stability and durability for users up to 330 lbs.
CONFIDENCE IN EVERY SIT - Over 100,000 safety tests passed with BIFMA & SGS certifications plus a 3-year warranty and responsive 24-hour support.
TAILORED COMFORT ALL DAY - Adjustable headrest, lumbar support, and reclining angles keep you perfectly aligned from morning meetings to late-night grind.

The SIHOO M57 Ergonomic Office Chair combines advanced ergonomic design with durable materials to support up to 330 lbs. Featuring 3D adjustable armrests and headrest, lumbar support tailored to your spine’s natural curve, and a breathable mesh back, it ensures all-day comfort. Certified for safety and built with a reinforced aluminum base, it offers smooth 360° swivel and silent casters ideal for professional home or office environments. Backed by a 3-year warranty and trusted by thousands, it’s the smart upgrade for your productivity and posture.

Specifications

ASIN	B07BDFW1Y7
Additional Features	Ergonomic
Age Range Description	Adult
Arm Style	With arms
Back Style	High Back
Best Sellers Rank	#21,244 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #60 in Home Office Desk Chairs
Brand Name	SIHOO
Chair Backrest Width	20.07 inches
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (8,098)
Fill Material	Polyester
Finish Types	Ergonomic
Form Factor	Recliner Chair
Frame Material Type	Polypropylene, Polyester, Metal
Furniture Base Movement	Swivel
Furniture Finish	Aluminum
Included Components	1
Item Dimensions	27.5 x 27.5 x 41.7 inches
Item Dimensions D x W x H	30.31"D x 25.59"W x 13.59"H
Item Type Name	Sihoo Ergonomic Office Chair, Computer Desk Chair, 3D Adjustable High-Back, Breathable Skin-Friendly Mesh with Armrest, Lumbar Support (Black)
Item Weight	22 kg
Leg Style	Tapered Leg
Manufacturer	SIHOO
Manufacturer Part Number	M57-M015
Manufacturer Warranty Description	1
Material Type	Mesh
Maximum Weight Recommendation	330 pounds
Model Name	M57-M111
Model Number	M57
Number of Height Positions	1
Pattern	Solid
Product Care Instructions	Wipe Clean
Recommended Uses For Product	Office
Room Type	Office
Seat Back Interior Height	48.43 inches
Seat Depth	18.11 inches
Seat Height	21.66 inches
Seat Material	Nylon
Shape	L-Shaped
Size	Pack of 1
Style Name	Modern
Surface Recommendation	Hard Floor
UPC	669614656623
Unit Count	1 Count

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥173883

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

2 months ago

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