Bobby pin’s zigzag side is there to keep it from sliding
Have you ever looked at a bobby pin and wondered why one end has a zig-zag pattern and the other has a straight pattern? What is this zig-zag form on the end of your bobby pin for? Although it is a simple question, you would be surprised by how many people actually do not know what it is for. But here is the answer.
It is because the zigzag edge of the bobby pin helps catch a large clump of hair and keeps it from falling out of your scalp. It is not only easier, but it also keeps the hair in place better. The bobby pin’s zig-zag is designed to ‘grab’ onto the hair underneath, while the straight side of the pin neatly secures the hair in place.