An 8 guard haircut length is perfect for people who have long, wavy, or curly hair. The #6 guard will leave just enough to style. If you have longer hair, a #7 guard will be appropriate. A number 8 guard will balance the length of the longer hair while still leaving a decent amount of hair on the scalp. You can experiment with different clipper sizes to create different looks. This article will give you some tips for choosing a clipper size for that.