Type 4 hair is mostly seen in African or Black individuals. The pattern of those hairs is very winding and tightly packed. For this type of hair, the 360 waves are the best option. And this type of hair is perfect for waves than straight hair.  The reason is that the form of hair can become waves very easily when you brush the tightly coiled hair. Anyone with this hair type gets the 360 waves delivered; they take some time to get a perfect wave.