These combs are made out of rubber, so they are softer, than metal, plastic or wooden combs & they don't break or cause headaches, unlike the others. They are super comfortable, durable and will not give you a headache. The combs are shaped to your head, they have a curved shape and you don't have the butterfly clips on the back, which allows you to comfortably lean back on your car seat, desk chair, lay on it and you can even fall asleep in these bun hair clip on.