4D Armrest Set for EC200 Ergonomic Chair
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Details
- Folds flat to just 10.1 x 2.2 x 0.3 inches – ultra-portable with velvet storage pouch
- 6‑level height adjustment (2 to 6.5 inches) for ergonomic viewing angles
- Supports up to 22 lbs with dual‑triangle stability structure
- Spring‑assisted alignment for quick, one‑handed setup
- Adjustable width fits 10‑17.3″ laptops, tablets, and more
- Open‑frame design maximizes ventilation and heat dissipation
- Premium aluminum alloy with non‑slip silicone pads – rock‑solid base
- Complete with soft velvet storage bag to keep your stand scratch‑free
ProtoArc CS100 is a foldable aluminum laptop stand that combines ultra‑portability with rock‑solid stability. It offers 6‑level height adjustment (2–6.5 inches), a spring‑assisted alignment system, and adjustable width to fit 10‑17.3″ laptops and tablets. The open‑frame design maximizes heat dissipation, while the dual‑triangle structure supports up to 22 lbs. Perfect for creating an ergonomic workspace anywhere.
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2 Years
Warranty
Upgrade Your EC200 with 4D Armrests
Upgrade from standard 2D armrests to enhanced 4D adjustable support for a more flexible and comfortable seating experience.
Fully Adjustable 4D Support
Fine-tune your arm position for different sitting styles, desk heights, and daily working habits.
Height Adjustment
Raise or lower the armrests for better desk alignment.
Forward & Backward
Slide the armrests to support your forearms naturally.
Left & Right
Adjust the position to fit different body types and postures.
Angle Rotation
Rotate inward or outward for a more natural arm position.
Comfortable Arm Support for Long Hours
The smooth padded surface helps support your arms and elbows during extended work, study, or gaming sessions.
- Soft-touch armrest surface
- Better support for arms and elbows
- More comfortable for daily desk use
2D vs. 4D Armrests
4D armrests give you more ways to adjust your arm position, helping the chair better match your posture and workspace.
| Type | Adjustment Directions | Best For |
|---|---|---|
| 2D Armrest | Up & down + one additional direction, such as left/right or forward/backward | Basic arm height adjustment for everyday sitting |
| 3D Armrest | Up & down + forward/backward + left/right | More flexible support for different body types and desk setups |
| 4D Armrest | Up & down + forward/backward + left/right + angle rotation | Personalized arm, wrist, and shoulder support for work, typing, and gaming |
Designed for EC200
This 4D armrest upgrade is designed for the EC200 Ergonomic Chair only. Please confirm your chair model before purchase.
FAQ
Quick answers before you upgrade your EC200 armrests.
Is this compatible with other chair models?
This 4D armrest upgrade is designed for the EC200 Ergonomic Chair only. Please confirm your chair model before placing an order.
Does this include both left and right armrests?
Yes. This product includes a left and right armrest pair for a complete upgrade.
What does 4D adjustment mean?
4D adjustment means the armrests can be adjusted up and down, forward and backward, left and right, and rotated inward or outward.
Is installation required?
Yes. Manual installation is required. Please follow the installation instructions provided with your chair or armrest replacement kit.
Is this a full chair or only the armrests?
This product is for the 4D armrest upgrade only. The EC200 chair shown in images is for compatibility and demonstration purposes.
DIMENSIONS
EC200 4D Armrest Upgrade
Armrest Type: 4D Adjustable
Compatibility: EC200 Ergonomic Chair
Color: Black
Installation Type: Replacement Armrest Set
SPECIFICATIONS
Adjustment Directions: Height, Depth, Width, Angle Rotation
Surface Material: Soft-Touch PU Pad
Frame Material: Reinforced Engineering Plastic
Ergonomic Support: Arm, Wrist & Shoulder Alignment
Special Features: 4D Adjustable Support, Flexible Positioning, Smooth Rotation
PACKAGE CONTENTS
Left 4D Armrest ×1
Right 4D Armrest ×1
WARRANTY INFORMATION
2-Year Limited Hardware Warranty
COMPATIBILITY NOTICE
Designed specifically for the EC200 Ergonomic Chair.
Please confirm your chair model before purchase.