Height-Adjustable Wheeled Office Chair

There is currently no standardized product directly named 'height-adjustable wheeled office chair,' but similar needs can be met by selecting an adjustable-height rolling office chair with backrest, headrest, or lumbar support height adjustment functions. Below is a detailed analysis and purchasing advice:

I. Core Functions Supporting 'Height Adjustment'

1. Backrest Height Adjustment
   Some office chairs (e.g., Sihoo B300Pro) feature independently adjustable backrests that can move up and down via sliding rails or buckle designs, accommodating the back support needs of users of different heights. This design indirectly increases the overall seat height, making it particularly suitable for scenarios requiring adjustments to match sitting posture with desk height.

2. Headrest Adjustment Range
   The height and angle adjustments of the headrest (e.g., Sihoo B300Pro's 2.5D adjustment) can extend the head support height, creating an 'overall height increase' effect when combined with backrest adjustments. The headrest's rotation function also adapts to neck support needs under different sitting postures.

3. Lumbar Support Height Control
   The up-and-down adjustment of the lumbar support (e.g., Sihoo B300Pro's independent lumbar support) optimizes the lumbar support position, indirectly affecting sitting posture height. Some products (e.g., those from Bazhou City Ali Baba Furniture Factory) use breathable mesh backrest designs to ensure support while reducing height limitations.

II. Recommended Products and Parameter References

1. Sihoo B300Pro

   • Backrest: Supports height adjustment, suitable for users of different heights.
   • Headrest: 2.5D adjustment (rotation + two-axis height adjustment), with a maximum adjustment range of approximately 10cm.
   • Lumbar Support: Independently adjustable up and down, with adjustable support intensity, suitable for long-term office use.
   • Casters: Standard omnidirectional wheels for flexible movement.

2. Yiwu City Changzi Furniture Factory Student Adjustable-Height Latex Swivel Chair

   • Price: ¥127.4
   • Functions: Basic height adjustment, equipped with omnidirectional wheels, suitable for students or light office use.
   • Limitations: No headrest or lumbar support adjustment; height increase depends on overall backrest adjustment.

3. Foshan City Xialuotehao Furniture Co., Ltd. Reclining Midday Rest Adjustable-Height Chair

   • Price: ¥295.0
   • Functions: Supports reclining flat, adjustable backrest height, and caster design for easy movement.
   • Suitable Scenarios: Home or office midday rest, with a wide adjustment range.

III. Purchasing Advice

1. Clarify Priority Needs: If precise 'height increase' is required, prioritize products with a large backrest height adjustment range (e.g., Sihoo B300Pro); if comprehensive support is needed, focus on headrest and lumbar support adjustment functions.
2. Contact Manufacturers to Confirm Parameters: Some products (e.g., those from Bazhou City Ali Baba Furniture Factory) do not clearly indicate adjustment ranges; it is recommended to obtain specific data through customer service.
3. Pay Attention to Caster Material: Prioritize PU silent wheels to avoid damage to floors caused by hard wheels.

Summary: By selecting an adjustable-height rolling office chair with multi-dimensional adjustment functions, the need for 'height increase' can be indirectly met. It is recommended to screen products based on budget and functional priorities and confirm detailed parameters with manufacturers.