Deli 4900 Office Chair

The Deli 4900 office chair is an ergonomic office chair launched by Deli, featuring height adjustment, 360-degree rotation, and available in both a basic and an upgraded version (4900S). The following provides an overview from three aspects: core functionality, material design, and model differences.

1. Core Functionality and Structure
The Deli 4900 office chair is designed with ergonomics at its core. The seat height can be adjusted to accommodate users of different heights, ensuring natural leg extension. The chair body supports 360-degree horizontal rotation, facilitating flexible movement within the office area and reducing fatigue caused by body twisting. Its minimum sales unit is a 'piece', with a packaging specification of 1/0/0/1 (possibly indicating single-unit independent packaging). The item number is clearly marked as 4900, facilitating quick identification during corporate procurement or individual purchases.

2. Material and Safety Design
The seat cushion combines raw materials with a scientific structure, enhancing breathability through integrated foam cutting technology to prevent闷热感 (stuffiness) caused by prolonged sitting while maintaining support. The chair body uses a Light Grade III electroplated rod, treated for corrosion resistance to ensure structural stability and durability. The fixed armrests, although non-adjustable, are designed with an ergonomic curve to fit the natural placement of the arms. Additionally, the product has passed green safety certification, with no release of harmful substances from the materials, making it suitable for long-term office use.

3. Model Differences and Upgraded Configurations

• 4900 Basic Model: Focuses on simplicity and practicality, with an integrated foam-cut seat cushion and non-adjustable fixed armrests, suitable for users with limited budgets or lower functional requirements.
• 4900S Upgraded Model: Builds upon the basic model by optimizing the backrest design, adopting an ergonomic backrest that fits the spinal curve and disperses back pressure. The seat cushion is upgraded to soft cotton material, further enhancing breathability and softness, suitable for users who need to work at a desk for extended periods or have higher comfort requirements.

Purchase Recommendations: If daily office use is primarily for short periods, the 4900 basic model can meet basic needs. For long-term use or those seeking higher comfort, the backrest and seat cushion upgrades of the 4900S are worth considering. Both models retain height adjustment and rotation functions, with core differences concentrated in materials and additional designs.