Dry conditions, such as walls, cement floors, etc. Anything that is a little rough and the temperature is easy to reach is ok, but it should be moderate, otherwise the medicine on the match head will be gone and naturally it will not be touched. Hehe, the matches bought now are basically safety matches. The so-called safety match means that the match can only be ignited when it is scratched on the match skin. The reasons are as follows: The components in safety matches are as follows: Matchhead is mainly composed of oxidant (KClO3), combustible substances (such as sulfur) and adhesive. The side of the matchbox is mainly composed of red phosphorus, antimony trisulfide and adhesive. When striking a match, the matchhead rubs against the side of the matchbox to generate heat, and the released heat decomposes KClO3, producing a small amount of oxygen, which ignites red phosphorus, thus burning combustible substances (such as sulfur) on the matchhead and igniting the match. So if you want to strike a match, you need to find something containing red phosphorus or other flammable substances. The most typical representative of this kind of thing is matchbook! Friction causes the match head to reach the ignition point.