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  5. Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black
4.8
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G**h
·
Verified purchase
US
Fast shipping! Great quality chair!!
Item:
Black
2025-11-14
n**h
·
Verified purchase
US
Sturdy chair
Item:
Black
2025-12-27
k**🥀
·
Verified purchase
US
spinnies
Item:
Light Gray
2025-11-05
E**n H**l
·
Verified purchase
US
Item:
Black
2026-01-24
m**1
·
Verified purchase
US
Item:
Black
2025-11-06
About this product
Details
Dangerous Goods Or Hazardous MaterialsNo
AssemblyAssembly Required
MaterialPP,Iron,Nylon,Plywood,Foam,Polyester Mesh,Plastic
FeatureAdjustable,With Wheel,Durable,Sturdy,Space-Saving
StyleModern
Product description
Quick Overview:
A great office chair isn’t just about comfort—it’s key to a productive, focused, and even enjoyable workday.
Imagine being stuck in a stiff leather seat with poor support, no adjustability, and limited mobility… It’s not just uncomfortable—it drains your energy, hurts your posture, and kills efficiency.
Meet your new everyday solution: this 360° swivel ergonomic office chair is designed for both home and office use, blending support, breathability, and smart functionality.
Details:
Durable & Certified Build Built to last with high-strength polyester mesh, a reinforced nylon star base, smooth-rolling casters, and a BIFMA X5.1-certified steel gas lift. Supports users up to 300 lbs—ideal for daily office use.
Breathable Mid-Back Support Densely woven mesh backrest promotes airflow to keep you cool and dry, while the ergonomic mid-back design cradles your lower and mid-spine, encouraging healthy posture.
Height & Recline Adjustable Easily adjust seat height from 18" to 22" with a simple lever. Recline freely or lock upright—plus fine-tune tilt tension with the knob under the seat for personalized comfort.
360° Smooth Mobility Equipped with a stable 5-point star base and five dual-wheel casters for quiet, seamless movement in any direction—perfect for dynamic workspaces.
Ergonomic Lumbar Support Contoured backrest aligns with your spine’s natural curve, delivering consistent lumbar support to reduce fatigue during long hours at your desk.
Sleek, Modern Aesthetic Clean lines, minimalist mesh design, and a polished base blend effortlessly into home offices, studies, or professional settings.
Comfortable Fixed Armrests Padded armrests offer steady support for your arms and shoulders, helping you stay relaxed and focused all day long.
Specifications:
Materials: steel, iron, PP, polyester mesh, foam, nonwoven fabric, plywood
Overall Dimensions:  24.5″ W × 24″ D × (35-39)″ H
Adjustable Seat Height: 18-22″
Arm Height: 23.2-27.2″
Seat Size: 20.3″ W × 17.7″ D × 3″ Thickness
Maximum Weight Capacity: 300 lb
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Costoffs Ergonomic Mesh Office Chair Mid-Back Height Adjustable Computer Chair w/ Lumbar Support and 360° Rolling Casters 300lb Weight Capacity Black

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4.8
(5)
23 sold
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Costoffs Shop
Costoffs Shop
4.7
1985 Sold
76%24h response rate
88%Ships within 2 days
93%Positive feedback
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