Japan is an earthquake-prone area, so the Japanese have strict requirements for protective equipment. This foldable helmet weighs only 430 grams. When not in use, it folds up to the size of a wallet without obstructing the space. In case of an emergency such as an earthquake or fire, just gently pull the rope on the back of the helmet, and the originally flat helmet will immediately deform into a new one. It becomes a practical protective helmet that provides quick protection. It is made of ABS material and is full of hardness.
