Strengthened folding mechanism design: Different from the general traditional single-piece structure, it is not easy to deform when pushed and pulled, and the rod is strong and durable.

The bearing structure of the movable wheel frame: the ball plate of the movable wheel frame adopts a bearing structure, which is not a traditional steel ball track. This design makes the rotation more labor-saving and quiet.

High-elastic infusion polyurethane: The wheels are made of high-elastic infusion polyurethane, which has excellent elasticity, saves effort and is easy to push, and protects the ground without leaving traces.