Office Chair 4900
The Deli 4900 is an ergonomic office chair launched by Deli Company, with the 4900S being its classic best-selling second-generation upgraded model. The following provides an introduction from two aspects: basic functions and upgraded functions.
Basic Functions:
The Deli 4900 office chair adheres to ergonomic design principles, with its core functions focusing on optimizing comfort for basic usage scenarios. The seat height supports adjustable lifting, accommodating the desktop height needs of users of different heights and preventing shoulder and neck fatigue caused by improper sitting postures. The 360-degree rotation function enhances flexibility in office settings, allowing users to quickly turn in different directions to retrieve items or communicate with colleagues. The seat cushion is made of original materials and features a scientific design, with some sources specifying the use of high-density original sponge. It possesses high density and high elasticity, effectively dispersing body pressure while reducing้ท็ญๆ (stuffiness) through a breathable structure, enhancing comfort during prolonged use. The exterior design is primarily simple, without excessive complex decorations, suitable for various office environment styles.
Upgraded Functions (4900S Model):
As the second-generation model, the 4900S has undergone several targeted upgrades in basic functions. Firstly, the 145-degree reclining function for lying down breaks through the sitting posture limitations of traditional office chairs, meeting the needs for lunch breaks or short rests, and relieving body fatigue through a large-angle backward tilt design. Secondly, the adjustable three-zone lumbar support is a core upgrade point. Its layered height can conform to the lumbar spine curve, dynamically adjusting the support position according to different heights and sitting postures, effectively relieving spinal pressure, especially suitable for users who need to work at a desk for long periods. Thirdly, the adjustable headrest further optimizes neck support, allowing users to adjust the headrest height according to their own height to prevent cervical strain caused by a hanging head. These upgraded functions collectively build a comprehensive support system from the waist to the neck, significantly enhancing the comfort and health protection capabilities of the office chair.
