1703 Office Chair

The specific information about the '1703 office chair' needs to be further confirmed in combination with the model number, but general installation steps and product type references can be provided.

Installation Step References

If the user is referring to an office chair with a similar model number (such as those shown in some videos), the installation process typically includes the following steps:

1. Base and Gas Cylinder Assembly: Insert the gas cylinder into the central hole of the five-star base (or four-legged support), ensuring the gas cylinder is vertically fixed. Some models may require the use of a three-section sleeve, which should be inserted in order and the height adjusted accordingly.
2. Seat Cushion and Tray Connection: Align the holes on the tray with those on the bottom of the seat cushion, ensuring the black knob faces forward (for easy subsequent adjustment). After initial fixation with screws, tighten them to about 30% depth first, and then fully tighten them once the overall structure is stable.
3. Armrest Installation: Align the armrests with the reserved holes on both sides of the seat cushion and fix them with screws. Some models may require tightening the screws in stages (e.g., fixing one side first and then adjusting the other) to prevent the seat cushion from tilting.
4. Backrest and Headrest (if applicable): For split designs, use short screws to fix the connection between the backrest and armrests, medium screws to fix the backrest to the seat cushion, and long screws to fix the four-legged support to the seat cushion. The headrest is usually installed directly on the top of the backrest using clips or screws.

Note: The screw specifications (short/medium/long) and fixation order may vary among different models. It is recommended to refer to the product manual or official installation video first. For example, the screw fixation order for the W703 four-legged adjustable chair is: armrest-backrest → armrest-seat cushion → four-legged support-seat cushion, and finally install the headrest.

Product Type and Purchase Recommendations

1. Model Confirmation: Currently, no clear brand or feature description for the '1703 office chair' has been retrieved. The following situations may exist:
   • The model number may be an internal model or a non-mainstream product, requiring the user to provide the brand name (such as Sihoo, Ergonor, etc.) for further matching;
   • The model number may be confused with other office furniture (such as the x-1703 computer desk), requiring confirmation of the product category.
2. General Purchase References: If the user needs to purchase a computer chair, recommendations can be made based on height and weight:
   • For users who are 170cm tall and weigh 55kg, they can consider the Xiangyaojia F3A (with a separate waist and back design, suitable for small body types) or the Ergonor You B (with mesh fabric, good breathability);
   • Focus on the adjustability (such as headrest height, armrest rotation angle) and material (mesh/leather) compatibility.

Recommendation: Users can confirm the model information through the product packaging, manual, or official customer service, or provide more context (such as brand, functional requirements) for precise answers.