Sihoo M91A Grey Frame Ergonomic Guest Office Chair with Adjustable Arms, Lumbar Support and PP Base

M91 ergonomic office chair with adjustable arms, cover with full mesh, while giving you firm support. Let you say goodbye to the sultry caused by long-term sitting. The C-curved waist pillow, support your back strongly, relieve your back pain immediately, after every time you immerse yourself in work.

Component Material of M91A Grey ErgonomicGrey Office Chair Adjustable Arms

Headrest

PP + fiber, self-adaptively adjustable headrest, corrects healthy cervical spine and releases brain fatigue.

Backrest

made of PP + fiber material, S-shaped spine frame, fits the curve of the spine, fully supports the back, sitting and reclining more comfortable; 3 levels can be adjusted by lifting.

Waist Pillow

nylon + fiber, split type can be adaptively fitted to the waist pillow, increase comfort.

Backrest Mesh

28% nylon, 25% polyester fiber, 47% polyester copolymer elastic special net, with bright colors, no fading, toughness and tensile resistance, abrasion resistance, non-toxic, rot resistance, chemical resistance, High temperature resistance, UV resistance, strong air permeability, long service life, etc.

Mesh Chair SupportSeat

PP+ fiber material, the mesh fabric uses elastic special mesh, sturdy and durable, built-in 5V silent cooling fan, comfortable and breathable, bid farewell to the stuffy feeling.

Mechanism

mechanical steel multifunctional mechanism, adjustable up and down, 3 gears locked and backward adjustment.

Armrest

PP+ fiber, fixed armrest with delicate touch, relax arm.

Gas Spring

made of all steel, passed SGS test, American BIFMA test, advanced three-level air pressure rod, 65-6 lifting stroke.

Chair Leg

330 high-strength PP five-star foot.

Caster

φ23/50 black nylon + PU edging wheel, smooth and dulling the edge of the chair leg, handy, silent, scratch-resistant floor.

Parameters of M91A Grey Ergonomic Mesh Office Chairwith Adjustable Arms

Item No	M91A	Seat Height (off the ground)	39-45.5CM
Armrest	PP	Seat Width	46CM
Back Frame	PP+Fiber	Seat Depth	40CM
Mechanism	Mechanical Steel Multifunctional Mechanism	Armrest Height (off the ground)	59-65.5CM
Gas Spring	Class 3	Backward Angle
Cloth Material	PE+Polyester	Overall Height (off the ground)	106-112.5CM
Chair Leg	350 Aluminum Alloy	Overall Width	59CM
Caster	PU	Overall Depth	64CM
Package	One Piece/Carton	Net Weight
Package Size		Gross Weight

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