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Office Chair 401

Admin October 09, 2026

Office Chair 401 usually refers to the Sihoo M18 - 401 computer chair. The following is an introduction from the aspects of design, functionality, materials, and installation:

Design

This chair features a triple-spine-relief design that provides excellent care for the cervical, shoulder, and lumbar vertebrae. The multi-dimensional rotating headrest is a major highlight. It can conform to the curve of the neck, effectively relieving the pressure on the neck during long periods of sitting, reducing neck fatigue, and offering comfortable support to the neck. The design of the zone-pressure-relief seat cushion is also very considerate. It can provide strong support to the legs, buttocks, and tailbone, allowing for a reasonable distribution of pressure across different parts of the body and preventing discomfort caused by excessive local pressure due to prolonged sitting.

Functionality

The armrests have a curved design and can be adjusted up and down by 7cm. This design can meet the needs of people with different heights and usage habits. Whether typing, operating the mouse, or resting, the arms can find comfortable support positions. The backrest has three adjustable recline angles: 110ยฐ, 116ยฐ, and 130ยฐ. People can choose the appropriate recline angle according to their own needs for short breaks during work. In addition, the chair is equipped with a hidden footrest. When people want to rest more comfortably, they can unfold the footrest to relax their legs.

Materials

The chair is made of sturdy materials and weighs over 20kg, which to a certain extent ensures the stability and durability of the chair. At the same time, it has passed the US BIFMA certification, which is one of the more authoritative certifications in the furniture industry. Passing this certification indicates that the chair meets high standards in terms of quality and safety, and consumers can use it with confidence.

Installation

The description of 'disassembly and assembly of 401' may be related to this model of chair. When installing, pay attention to details such as the corresponding positions of screws and wooden plugs. The correct installation sequence and the tightness of the screws will affect the performance and safety of the chair. Therefore, strictly follow the instructions during the installation process.