OC12-PRO, Ergonomic Office Chair

Regular price $449.99
Sale price $449.99 Regular price $599.99
Save $150 (25%)
Color: Black
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Say goodbye to discomfort and hello to the OC12-PRO — because work and play just got a whole lot more fun. This high-back chair boasts a range of customizable features, including a unique adjustable lumbar support system, backrest, and seat depth adjustment, ensuring optimal ergonomic support tailored to your preferences. With a tilt function and 4D armrests, this chair is ideal for both home office work and gaming sessions. The integrated footrest adds an extra layer of relaxation.


  • Ergonomic: The OC12-PRO Office Chair is a perfect choice for long hours of working and gaming. Featuring a dynamic self-adaptive lumbar support, it follows your body's movement for optimal comfort and reduced back pain. Be productive and stay healthy with the OC12-PRO.
  • Highly Adjustable: Adjustable chair back height, headrest and seat depth make this chair suitable for people of different body types, allowing you to find your most comfortable posture.
  • Four Backrest Settings: The chair's backrest can be adjusted to several settings — 96°, 106°, 116° and 126° — providing you with the perfect posture in any situation.
  • Safe and Secure: Experience a secure and dependable ergonomic seating solution. Featuring a Class 4 explosion-proof gas spring and a base rigorously tested up to 1136 kg of static pressure, this chair is built to support up to 300 lbs. with absolute stability.


  • Overall Dimensions: 27.48" D x 20.47" W x 42.72-53.54" H
  • Item Weight: 53 lbs.
  • Seat Height: 17.5"-20.7"
  • Seat Depth: 13"-17"
  • Seat Width: 19.6"
  • Max. Weight Capacity: 300 lbs.
  • Armrest Type: 4D
  • Headrest Type: 2D
  • Materials: Mesh
  • Box Dimensions: 22.83" x 20.08" x 23.23"
  • Recommended height:4‘9‘’-6’1‘’

Buying Guide

  • About Color Difference

Please note that regarding color accuracy, we strive to display our products on our website as faithfully as possible, considering the variations in individual color perception due to lighting and screen differences.


  • Free Shipping (Lower 48 US States Only)
    We work with multiple third-party delivery partners for delivery and do not currently offer expedited or 2-day shipping. We have two default delivery services, limited to the lower 48 US states only. large item(s) is typically delivered via LTL freight shipping, and general item(s) is delivered via FedEx/UPS. It cannot be delivered to rural routes, Hawaii, Alaska, APO/FPO addresses, or P.O. boxes. Customers in such areas will be charged additional shipping fees. Please consult customer service for shipping quotes.
  • FedEx/UPS will dropped off the item(s) in front of the first ground-level entryway outside your home (front door, porch, or garage). Transit time for free standard shipping varies from 2-7 business days and is not guaranteed.
  • Free LTL freight delivery is Curbside Drop-Off, transit time for free standard shipping varies from 7-18 business days and is not guaranteed. Deliveries are not typically made at weekends or on holidays. The carrier will unload the item(s) to the ground for you at the loading area or in front of the building/house at the curb. This service does not include unpacking, assembly, or garbage removal. Due to the large volume and weight of the product, you may need some assistance from a family member or friend for the removal of the item(s) from the curbside to your house.
  • Paid upgrade services: We can provide upgrade services, including white gloves or other delivery services, if upgrading services it may cause extra charges. And for more detail please contact our customer service.
  • Once your order has been processed, we will email you order status updates and your tracking number. You can always access your account online and view your order status and tracking details there.


Return & Refund Policy (U.S. Only)

  • If you are not satisfied with the product, You have 30 days after delivery to return the product in its original condition. Return shipping costs are the responsibility of the customer. Upon return, your merchandise will be inspected and appropriate credits and/or refunds will be issued for the item(s) and any taxes due to be refunded in accordance with state law. A restocking fee will apply.

  • But if you have any concerns and wish to return the product, please reach out to our Customer Care Experts. We offer solutions to help you fix what’s wrong, so you can keep and love the things you buy. Because sometimes no return is the easiest return of all.
  • If the products are damaged/defective upon arrival, please call customer service or contact us via email within 72 hours.
  • Services: Services like assembly and installation, expedited shipping (i.e. next day or 2nd-day shipping), and extended warranty are non-refundable.
  • Note: We only accept returns if they are purchased directly from us on eurekaergonomic.com and flagship stores established in online marketplaces that are registered under the name of an Eureka Ergonomic entity. Please contact the relevant distributor if otherwise.
  • For other details about exceptions to our return policy, please check THIS LINK.
Free shipping On All Orders
30 Day Return Policy Easy Returns and Refunds
Warranty Safe and Secure
OC12-PRO with Footrest High Back Desk Chair with Unique Adjustable Lumbar Support,
Regular price $449.99
Sale price $449.99 Regular price $599.99

Lockable Adaptive Dynamic Lumbar Support

"Sitting position without support to the lumbar spine creates nearly 50 % increase in IVD (Inter vertebral Lumbar Disc) pressure compared to sitting with lumbar support." - Professor Isabel L. Nunes - Ergonomics: A Systems Approach - Page 56

Innovative Adaptive Lumbar Support

This office chair with a lumbar support has an auto-chasing mechanism, which automatically follows the movement of the lower back, providing strong lumbar support throughout the day. The intensity of the lumbar support can be adjusted to meet individual needs. It fits the natural curvature of your spine, can help relieve back pain, and can relieve up to 50% of the lumbar pressure caused by a sedentary office.

Resolve Lumbar Issues Caused by Prolonged Sitting

Focus on advancing research and development in waist protection technology, leveraging principles of ergonomics and considering the diverse bone developments across different age groups. This innovation aims to dynamically adjust to a variety of lower back changes, proactively conform to individual sitting postures, deliver adaptable support to the lumbar spine, and alleviate pressure points on the spine.

Adjustable Reclining Angle

The backrest of this ergonomic office chair can be reclined and locked within a range of 96°-136°. The angle and height adjustable headrest provides the most comfortable position for your neck. Seat lifts up and down and moves back and forth, plus 4D adjustable armrests for the ultimate in customized comfort in the office, or in front of your game!

High-quality Seat Cushion for Long-term Sitting Comfort

2.76-inch high high-density sponge cushion seat for long sitting without collapse. Cater to a variety of body types, fit the buttocks and legs, And with 2-inch seat depth adjustment to reduce the pressure on the legs, and improve the comfort of sitting for a long time.

Certified Quality

This home office chair uses the gas rod which is made in Korea and certified by BIFMA/SGS. Korea Filo Breathable Back Mesh to keep good air circulation in your back, perfect for longtime sitting. And the high load base is equipped with silent pulleys, compression resistant and stable. Our office chairs are solid and durable, providing quality assurance for your healthy work and life.


Customer Reviews

Based on 2 reviews

I love having this fantastic chair, there is no noise, and there are a lot of places that I can adjust, it’s very breathable as well

very comfortable

this chair is very comfortable! We use it to sit in all 8 hours of the day for work and it's so much better than our old chair. Haven't had any more back pain!