701A detachable chair with adjustable nylon 3d armrests for multi-function gaming office computer chair is an innovative and practical chair accessory designed to enhance user comfort and convenience. Its unique feature is the detachable design, which allows users to easily install or remove the armrests as needed, making it convenient to use the chair flexibly on different occasions. The armrests are also adjustable, allowing users to adjust the height and angle according to their personal preferences and body shape to obtain the best support effect. This design not only helps to improve sitting posture and reduce fatigue caused by long-term sitting but also can prevent the occurrence of cervical and lumbar spondylosis to a certain extent.