1. First, wear the helmet firmly on the head, which can be adjusted appropriately to feel comfortable; Then fasten the headband to fix the helmet firmly on the head; Fasten the guard jaw; Wear protective glasses.

2. Do not use helmets that have been greatly impacted. If the helmet falls from the higher point of the motorcycle with the top facing upwards, the helmet can still be used; If the helmet falls down from the top, the helmet will be seriously damaged and can no longer be used. Helmets that have had accidents cannot be used.

3. After the motorcycle stops, do not put the helmet on the rearview mirror. Because the rear-view mirror will deform the helmet lining material and lose its cushioning effect, if it really needs to be placed on the vehicle, try to hang it at the end of the handlebars and grips.

4. It is forbidden to add decorations on the helmet, especially labels on the goggles, which will hinder the vision and form a potential safety hazard.