1. Pulley, also known as caster, universal wheel. The main purpose is to facilitate our movement. Pulleys can be divided into ordinary plastic pulleys and PU perfusion pulleys. Plastics have low service life and high wear and tear, and are now basically eliminated; PU pulleys are elastic, relatively speaking, they have better grip and are not easy to slip, and have lower noise and longer life.
2. The legs of the chair, generally extending the tripod around. Common materials are aluminum alloy, steel and nylon. Aluminum alloy tripods are the most widely used in computer chairs, with light overall weight, strong load-bearing capacity, not easy to deform, and the highest price; It is more brittle than aluminum alloy and needs to be processed. Nylon tripods are harder than plastic and relatively cheap. Compared with the first two, they will not easily scratch the ground. They are sure to be easy to wear and have a shorter service life.
3. Air rod, the height adjustment rod, the most dangerous part of the whole chair, depends on whether the gas rod is inert gas, and whether the thickness of the gas rod meets the standard. Be sure to choose well to avoid accidents.
4. The base, the hardest part above the air rod, is also the most expensive part of all accessories. We must choose the best one here, not for anything else, but for ourselves.
5. The back and core items should be soft and breathable.
6. The armrest directly affects our posture, and the most practical is the height-adjustable one.
7. The lumbar pillow can be selected according to the overall comfort of the chair, optional.
8. The headrest, like the lumbar pillow, is recommended if the space allows for a flat seat back.
No matter how good the chair is, it is better to get up and move around after a long time. So do more exercise and don't stay seated for a long time.