For example, if there is a small bag that can be filled with heating pads, it can be used in winter and emptied in summer. This is still very important for the elderly. Some good waist protection belts use the pulley principle, and can be easily bound with less force to ensure that they are not too stinging while being fixed. When purchasing waist protection, you must consider your own characteristics and needs, and select the kind that is comfortable and convenient to use.