72mm Black Auto-return Height Adjustable Cylinder Gas Spring Cylinder  for Office Chair ​  
 
Specifications:

Description:

auto-return height adjustable cylinder
The bottom of the gas spring is tapered. 

the higness of the chair is not tall,but it can up to a high position by this kind of gas spring.

1. The future: the auto-return height adjustable cylinder swivels 360 degree in both directions, height adjustable when seated and returning the seat automatically to the original position when vacated.

2. warranty: JEWELL warrants 5 years. It is that each gas cylinder will be free from defects materials and workmanship for the lifetime.

3. excellent appearance and superior strength

4. Application: executive office chair and luxury chair as well as specially designed chair by increasing the strength

5. Available sizes: dimension and F1 can be changed to comply with buyer\'s requet

6. Test methods: ANSI/BIFMA performance stardards and any customer\'s test requirements

Applications:

Bar stools

Game room chairs

Conference chairs

Any specific chairs requirement

Competitive Advantage:

Smooth rotation without noise

Comfort and maximized efficiency of the chairs

No need of additional fixture for a joint as the single outer pipe with cylinder in solid steel material