If it is a decorative line, then these two white lines may only be set for beauty and have no practical function. If it is a positioning line, these two white lines can help users find the buttonhole position of the belt more accurately and avoid the problem of improper tightness of the belt during adjustment.
Whether it is a decorative thread or a positioning thread, these two white lines will not affect the use effect of the belt, but are only set to increase the aesthetics of the belt or the convenience of use.
If you are worried about the quality and material of the belt, you can refer to the following points to judge the quality of the belt:
1. material: the material of high-quality belt should be genuine leather, which is soft to the touch and delicate in texture. If it is artificial leather or other materials, the quality and durability may be reduced.
2. Technology: A good belt should have complete edges, neat threads and delicate stitches. If the thread ends are loose and the stitches are irregular, it means that the process is not fine.
3. Buckle head: A good belt buckle head should be firm and not easy to loosen. The material of the belt buckle should also match the material of the belt itself.
4. Brand: Choosing famous brands of belts can ensure the quality of belts to a certain extent.