Office Chair with Stepless Adjustment

The following office chairs feature stepless adjustment functionality:

1. Livorno E76 Model
The core advantage of this office chair model lies in its 95-160 degree stepless adjustment backrest design. Stepless adjustment means users can continuously and smoothly adjust the backrest angle within the range of 95 to 160 degrees according to their own needs, without relying on preset fixed positions. This design significantly enhances usage flexibility, allowing users to find the most supportive position that fits their body curves through minor adjustments, whether for daily office work, short breaks, or deep naps. Additionally, its adjustment mechanism typically employs high-precision dampers or gas springs, ensuring a smooth angle transition without any jolts and stable fixation at any position, preventing angle shifts due to external interference.

2. Jichuang AGKey-Z1 Ergonomic Chair
The stepless adjustment function of this chair focuses on the 135° recline angle and incorporates lumbar-back linkage lifting technology. The 135° recline range covers various scenarios from mild relaxation to semi-reclining. The stepless adjustment feature allows users to gradually adjust to the most comfortable angle based on their weight, sitting habits, or environmental needs, avoiding insufficient support or excessive recline due to position limitations. The lumbar-back linkage lifting function further optimizes the dynamic support experience: when the user reclines, the backrest and lumbar support adjust their angles and heights synchronously, ensuring targeted support for the lower back and reducing fatigue from prolonged sitting. This design is particularly suitable for users who need to frequently change their sitting positions, such as programmers, designers, and other professionals who work at desks for extended periods.

Details to Note:
Some products mention large recline angles (such as the 150-degree reclining design of the Stepless Suspension Ergonomic Chair Flow55) but do not explicitly state 'stepless adjustment,' possibly employing a stepped locking mechanism. Such chairs require manual selection of fixed positions during angle changes, offering slightly less flexibility than stepless adjustment models. Therefore, if users have high requirements for the precision of angle adjustment, it is recommended to prioritize products explicitly labeled as 'stepless adjustment'.