303A adjustable nylon 3D armrest is a high-quality accessory armrest designed for multi-functional office computer chairs. Made of sturdy and durable nylon material. The 3D adjustment function supports multi-directional adjustment of up and down height, front and back depth, and left and right angles, which can flexibly adapt to different body shapes and usage needs. The armrest surface adopts a soft and non-slip design, which is comfortable to touch and easy to clean. 303A armrests provide users with ergonomic support and personalized adjustment options.