ARC-SHAPED
Sihoo M57 seat designed with ARC-SHAPED to help in releasing thigh muscles and maintain comfort.
![](http://aitsulabmy.com/cdn/shop/files/286164355_178600544534263_8737565148480749330_n_750x_b5185084-64ec-4b55-b0b2-a3ffd6a1b190.webp?v=1668570769)
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Full Mesh Design
Breathable
- Designed with complete mesh to keep you cool when sitting for lengthy periods of time in our chair.
Skin-friendly mesh type
- High-quality mesh, so you will not feel like it is scratching your skin
Adaptive Lumbar Support
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3D Adjustable Armrest
SIHOO M57 armrests are:
- 7cm adjustable for front and back
- 7cm adjustable upwards and downwards
- Able to rotate 36°
BIFMA x SGS Certified
To ensure customer safety all our ergonomic chair was certified by SGS and BIFMA, quality are guaranteed.
![](http://aitsulabmy.com/cdn/shop/files/Capture_750x_ba0ca923-02e5-4498-a566-103b4c099cc9.webp?v=1668570884)
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SIHOO CERTIFICATE
Sihoo certified Aitsulab Enterprise is as a reseller of Shenzhen Yuantuntongda Trading Co.Ltd.
Material of the chair
Fabric
- The whole chair is made of PE+polyester special mesh, which has bright colors and does not fade, strong tensile resistance, abrasion resistance, non-toxic, decay resistance, chemical resistance, oil resistance, high temperature resistance and UV resistance, and strong air permeability. Features such as long service life.
Headrest
- made of PP+ fiber material, the headrest can be rotated 45°, and the lifting function can be adjusted.
Backrest
- made of PP+ fiber material, S-shaped spine frame, fits the curve of the spine, fully supports the back, and makes sitting and reclining more comfortable.
Waist
- Made of PP+ fiber material, the waist pillow is wrapped with thick sponge, giving the waist a stronger top waist strength.
Armrest
- armrest frame is made of electroplated Q235 steel + PA material, and the 3D PU material armrest surface can be adjusted up and down in 5 gears, and can be adjusted back and forth and rotated left and right at the same time.
Seat Cushion
- seat cushion is made of PP+ fiber, which is sturdy and durable.
Mechanism
- cold-rolled mechanical tension spring, mechanical steel multi-function thickened explosion-proof mechanism, adjustable lifting, adjustable back tightness, three-speed back adjustment.
Gas Spring
- mainly made of steel, passed the American BIFMA test, three-level air pressure rod, 100mm lifting stroke sinking 40mm.
Chair Leg
- 350 aluminum alloy feet, passed the American BIFMA test.
Caster
- Silent non-slip large-side PU chair wheels, smooth and dull chair leg edges, handy, silent, scratch-resistant floor.
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