Tookfun Ergonomic Chair Waist Support Office Chair 4D Armrest Computer Gaming Seat Lift Swivel Chair Home Furniture 3D Headrest
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SPECIFICATIONS
Adjustable height: Yes
Backrest Height: <=125mm
Bottom Prong Diameter: 72cm
Brand Name: TOOKFUN
Ergonomics: Yes
Folded: No
Footrest: Yes
General Use: Commercial Furniture
High-concerned chemical: None
Installation Method: Assembly
Is Rotatable: Yes
Material: Lacework
Maximum Load Capacity: 200kg
Model Number: YS-W203-11.17
Origin: Mainland China
Reclining Angle: 165°
Seat Width: 49cm
Specific Use: Office Chair
Style: Executive Chair,Lift Chair,Mesh Chair,Swivel Chair
Total Height: 127cm
Type: Office Furniture
With Handrails: Yes
With Rollers: Yes
is_customized: No

Why choose a "Level 4 Gas Stem" for an ergonomic chair?
A Level 4 gas stem is the "safety lift center" of the human body. Its core function is to safely adjust the chair's height and completely prevent the risk of explosion.
I. Core Function: Safe Lifting
1. Adjusting Seat Height: This is the most basic function of a gas stem. Using a lever underneath the chair, you control the air pressure inside the stem, allowing the chair to rise and fall smoothly, allowing you to easily find the perfect sitting position for your desk height, ensuring your feet are flat on the ground and your thighs are parallel to the ground, maintaining good blood circulation.
2. Cushioning ("Free and Easy" function): When you lean back, the nitrogen inside the stem provides a cushioning effect, making the reclining motion smoother and more stable, enhancing comfort.
II. Why is "Level 4" so important?
1. The stem is filled with high-pressure nitrogen. If the quality is substandard, there is a very low risk of explosion (although rare, it can be very dangerous). The "Level" is an international safety certification standard (ISO standard) established to address this risk. 2. This grade is usually clearly indicated on the gas rod tube (e.g., CLASS 4). The higher the grade, the stricter the safety standards.
A Class 4 gas rod is not only the core component that enables the chair's lift function but also the most critical barrier to user safety. It has undergone rigorous testing for high strength, high temperature, and durability, completely eliminating the risk of explosion.
Newly upgraded sixth-generation technology leads the way
Comprehensively upgraded chair for increased comfort and more user-friendly adjustments

Comparing Real and Fake Ergonomic Chairs
Liftable lumbar support for all heights vs. fixed lumbar support that doesn't provide precise support
6-D adjustable armrests with up/down/forward/backward/swivel adjustment vs. single-function design that doesn't meet your adjustment needs
3-D adjustable headrest with up/down/forward/backward/swivel adjustment vs. single-function design that doesn't provide a precise fit
165° reclining angle for comfortable work and rest vs. no reclining angle that causes back pain from prolonged sitting and prevents relaxation



Sacral lumbar support absorbs shock, reduces pressure, and supports the sacrum. True lumbar protection means no lumbar injury.
6D adjustable mechanical arms (front/back/up/down/rotation)
3D articulated headrest (front/back/up/down/rotation)
165° reclining angle for greater comfort
Newly upgraded dragon-patterned mesh for enhanced sturdiness
Dual-flap footrest for more relaxed leg rest

Three-zone floating wing provides seamless lumbar support
Zone design and dual-spring structure adjust support direction and strength based on waist movement
* 6D floating lumbar support system
* Pressure-sensitive feedback tracking module
* Stable integrated back frame

Dragon-patterned mesh throughout the chair
Lighter, more breathable, and stretchier, made from high-quality materials
* Breathable mesh fabric
* High-quality elastic mesh
* Effectively evaporates sweat

3D Adjustable Lumbar Support with Dynamic Lumbar Tracking and Sacral Support
6th Generation Support Technology:
Designed with bionic spinal mechanics in mind, this technology decomposes the lumbar region into three key areas: the upper lumbar support zone, the lumbar spine conforming zone, and the sacral support zone.
This prevents spinal compensation that "supports the lumbar spine but not the sacrum." Whether you're sitting upright, relaxing, or twisting your body, the elastic deformation of the floating wings provides "dynamic lumbar support," keeping the lumbar spine in a natural neutral position. This effectively alleviates the root causes of lower back pain and sacral compression caused by prolonged sitting.
Fitting and More Support:
Alpha a adaptive lumbar support provides front-facing support and back-support with elastic support.
Highly Resilient and Cushioned Backrest:
Double elastic support cushions backrest impact. This reduces the pressure on your lumbar spine and provides a more flexible and stable support.
Adaptive Lumbar Fit:
The elastic lumbar pillow offers a wider floating angle, adapting to the load point to provide additional support.



Mechanical switch for one-touch operation without bending over.
Seat depth can be adjusted 6cm by moving the handle upward.

Suitable for heights between 155cm and 185cm, with a maximum weight capacity of 200kg.
After numerous tests and model revisions, our goal is to ensure that the thighs and buttocks are fully involved in distributing body pressure, eliminating stress concentration.Tookfun


3D articulated headrest with wide adjustment range and includes a coat rack.
10cm lift adjustment
3cm front and rear adjustment
45° swivel adjustment
* 3D articulated headrest: Dual joints for multiple angles and front and rear adjustment
* Standard headrest: Single joint, not front and rear adjustable


Flexible support for any posture
6D adjustable robotic arm | 210° full rotation | Up and down movement | Front and rear armrest translation | 200° armrest rotation | 45° inside and outside rotation | 90° inside and outside rotation | 180° inside and outside rotation


6th Generation Adjustable and Upgraded Equalizing Springs
The chassis, a result of the wisdom of mechanical transmission safety technology, features a special equalizing spring. The seat depth can be adjusted with a slide mechanism, allowing smaller individuals to easily recline, while taller individuals can enjoy leg relief from prolonged sitting.

Increased 165° reclining angle for more comfortable deep sleep

Introduction to Dragon Pattern Special Net
3D Dragon Pattern Special Net is an advanced weaving technology capable of producing fabrics with complex shapes and structures in three dimensions (length, width, and thickness), resulting in a more complex three-dimensional structure.









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Warranty:We guarantee that all products are brand original and brand new.We offer two year official warranty for all electronic product, If there is any damage, You can send the product to the nearest repair center, Or we will send you free parts, you can install them easily by yourself (Please be assured that we will send you the installation video), But if it is damaged by human factors, or if it is destroyed by external forces, you need to pay extra repair fees. Any after sales service if you need, please contact us via Facebook or VK. @tookfun
Return Policy:According to the rules, the product has 15 days no reason to return policy, if you don't like the product, please tell us the reason, you can return it and get a full refund.We guarantee satisfactory service for honest and reasonable buyers.
Shipping Time And Customs From China:When you choose the goods to be shipped from China, We will use the best shipping method to ship the product, 3-10 days in East Asia, 7-15 days in Europe, 10-15 days in North America, 12-20 days in South America, 7-15 days in Australia.Buyers are responsible for custom taxes, If you have special requirements for customs, please contact us and leave a message when you place the order.
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