Simple Small Office Chair

The following are several products that meet the requirements for a 'simple small office chair', along with their prices and features:

1. Adjustable Height Rotating Office Chair (Price: 72.0 yuan)
This product is a compact home study chair, designed for spaces with limited room (such as rental apartments, dormitories, or study rooms). Its core features include adjustable height and 360-degree rotation, allowing it to fit desks or dressing tables of different heights and meet the needs of various scenarios. The material of the seat is not specified, but its price positioning leans towards the economical range, making it suitable for users with a limited budget and basic functional requirements.

2. Backrest Office Chair for Study and Home Office (Price: 150.0 yuan)
This model is positioned as an 'ergonomic chair for long sitting without fatigue', emphasizing ergonomic design for prolonged office or study sessions. Although the dimensions are not explicitly stated, the description of 'small' indicates that it is of moderate size, suitable for dormitories or rental apartments. The higher price may be due to upgraded materials (such as a thicker cushion and breathable mesh fabric) or structural optimizations (such as a curved backrest to support the waist), making it suitable for users with higher comfort requirements.

3. Office Chair with Bionic Shell Design (Price: 85.0 yuan)
This product features a 'bionic shell' design, with a leather-like small chair shape that combines simplicity with practicality. Its wholesale positioning may imply a simple structure and easy assembly, making it suitable for office staff chairs or spare chairs at home. The leather surface is easy to clean, but its breathability may be inferior to mesh fabric, requiring consideration based on the usage scenario.

Exclusions to Note:

• Tatami Seat (77.0 yuan): Although it is a small backrest chair, it belongs to the 'folding chair' category, designed primarily for leisure scenarios (such as balconies or bay windows). It lacks the rotation and height adjustment functions of an office chair and does not meet the core requirements for an 'office chair'.
• Small Pumpkin Round Pillow Cushion (11.88 yuan): This is merely a cushion accessory and cannot be used independently as a seat; it needs to be paired with another chair and is therefore not included in the recommendations.

Purchase Recommendations:
If you prioritize cost-effectiveness and basic functions, the 72-yuan adjustable rotating chair is a good choice; if you require comfort for long-term use, the 150-yuan网红 chair (internet-famous chair) is more suitable; if you prefer a leather appearance and simple design, the 85-yuan shell chair is an option. It is recommended to make a comprehensive decision based on the usage scenario, budget, and material preferences.