This is a THREE-PART WAVY CLOSURE. So you can use as either center or side part as you like. A Lace Closure is used to cover the top of the head where thinning or balding may occur. Many who wear sew in or bonded weaves, use the Lace Closures to cover the top area of the head where the weft hair ( track hair, weaving hair ) is bonded/sewn down. Closures are used to cover the area that is known to many as the "horseshoe".Those who are very familiar to wearing weaves know that the most important part of weaving is to make sure the area at the front hairline & crown area are well blended. They can also be used with various other weaving methods. You can apply them with weaving thread or with liquid/tape adhesives. No one will ever know it is not your natural hair growing out of your scalp!