This caster uses advanced gravity sensing technology. When the user sits down, the wheel will automatically lock instantly, effectively preventing the chair from sliding and shifting. When the user stands up and leaves the chair, the wheel automatically unlocks and can rotate flexibly, whether it is adjusting the sitting posture during daily office work or moving quickly in e-sports games, it can respond smoothly. This function is especially suitable for conference occasions, office environments where people get up frequently, and children's chair use environments, greatly improving the convenience and safety of use. The main material combination of PP+PVC gives the wheel excellent stability and impact resistance, ensuring that it is not easy to deform and damage when subjected to a certain weight and external force.