Use a pointed vise to grip the part of the wheel and chair interface, find the fulcrum, open it outwards, and turn it counterclockwise.

PU, mesh office chair cleaning: PU material is a synthetic synthetic leather material, which is more beautiful and easier to care for than the leather.

First, the seat should not be too high. The seat is too high, the foot is easy to hang, the blood flow below the thigh is not smooth, and the foot will be numb for a long time.