The Falcon Zero10x (T10DDM)handle folding mechanism has a sleeve-shaped stopper that is fixed to the handle post by lever operation in order to keep the handle upright when driving.

Even though it is fixed with a lever, if you drive too hard, the vibration will loosen the stopper little by little, and the stopper may move upward.To prevent this, you can suppress the rise of the stopper by adding this sleeve to the upper side of the stopper fixed with the lever.The additional stopper has flanges on the left and right so that it can be easily attached and detached.