This switch wheel has a diameter of 55mm and is made of PP + PVC. The overall color is a simple and steady gray. It has a manual brake function, which can be easily fixed by stepping on it lightly, meeting the needs of starting and stopping at any time, and is suitable for various child chair usage scenarios. The wheel runs quietly and smoothly, is wear-resistant and durable, is suitable for a variety of ground materials, and is easy to install. It provides a practical solution for moving and fixing equipment, combining functionality and aesthetics. It supports color and material customization to meet personalized needs.