Football material
1. pvc material: cheap, seriously affected by the weather, easy to deform and pack; easy to crack in winter;
2. pu material: the material is better, most footballs and basketballs on the market are made of this material, the sphere is less affected by temperature, and it is not easy to deform;
3. Leather material: The price is the highest, the leather material is easy to absorb water, and it is easy to deform and change if it is not maintained well.
