Home S9 Pro Ergonomic Office Chair

S9 Pro Ergonomic Office Chair

Regular price $629.99 Sale price $399.99
37% OFF
Color: Black

Estimate delivery times:1-6 days

Return within 30 days of purchase. Duties & taxes are non-refundable.

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Quantity Discount
3-4 3%
5-9 5%
10-29 7%
30+ 10%
S9 Pro Ergonomic Office Chair

S9 Pro Ergonomic Office Chair

1. One-Touch Precision Control
Adjust seat depth, tilt angle, and height with a single button. Switch seamlessly between work and relaxation without complicated adjustments.
2. 6D Armrests for Total Support
Move in six directions—up, down, forward, backward, inward, and outward. Perfect for typing, meetings, gaming, or relaxing, keeping shoulders and wrists fully supported.
3. Premium Breathable Mesh & Solid Build
German-imported mesh keeps you cool during long hours. Reinforced aluminum alloy base ensures long-lasting stability and strength.
4. Silent Rollers & Reliable Details
Smooth PU casters glide quietly across any surface. SGS-certified class-4 gas lift delivers safe, stable height adjustment for daily use.
Product Dimensions 28" W × 28" D × 46"-52.8" H
Seat Height 19''-22''
Seat Depth 16.7''-18.9''
Headrest Adjustment 3D headrest
Backrest Adjustment 5-level
Weight 48.06 lbs
Weight Capacity 300 lbs
Base Aluminum alloyl
Base Diameter 25.6"
Caster 65 PU nylon silent casters
Hydraulic Gas Piston Grade 4 explosion-proof gas lift (standard Grade 4 for black version)
Materials German imported suede

We all love to grab the best deals online. But what makes these deals sweeter? The answer is 'Free shipping'! Who doesn't love to have their goodies transported to them at no extra cost? We at Welaxchair are thrilled to provide this facility to all our customers in the lower 48 U.S. states. Doesn't this perk suggest we value not just your money but also your experience?

Free Shipping - For Whom and How Long?

Free shipping is an exclusive offer for customers residing in the 48 contiguous states. Sadly, commodities sent to Hawaii, Alaska, Puerto Rico, Guam, FPO, APO, or PO Boxes are not free due to the higher shipment charges. Orders, once placed, usually take 1-3 days to process and 1-6 business days for delivery.

What about holidays and high-demand periods?

We strive to deliver the best to you even when we're swamped with orders. However, do allowances for delays during national holidays, extreme weather, inventory shortages, shipping carrier delays, custom delays, and other uncontrollable scenarios. Your understanding and patience in these situations is always grate appreciated.

Can I cancel my order?

Yes, you can! If you want to cancel an order, reach out to us at support@welaxhome.com as soon as possible. We can issue a full refund if the product hasn't yet been shipped. However, if the delivery is in progress, cancellation won't be possible.

Need a change of address?

We're swift with our processes. Therefore, post 12 p.m. PST every day, shipping address modifications are not possible. However, our return policy allows you to return an item and have it shipped to a different address.

What about tracking my order?

You'll receive a notification email with your shipment's tracking information once your order leaves our warehouse. You can easily track your package on the official logistics website, either FedEx or UPS. You're always welcome to contact us at support@welaxhome.com with your concerns about shipping.

Welax Return & Refund Policy

You may request a return or exchange within 30 days of receipt. Items must be in original packaging and saleable condition.

  • Free return shipping if item is defective, damaged, lost, or incorrect.
  • Customer pays shipping if due to preference, no longer needed, or incorrect info provided.
  • Refunds are processed within 2–5 business days after inspection (may take 3–7 business days to reflect).
  • Report any missing or damaged items within 7 days.
  • The compressed sofa is not eligible for return or exchange after being unpacked.


For more details, please refer to our full Return & Refund Policy on the Returns page.