A 4x4 Lace Closure Wig is a type of wig that has a 4x4 inch lace closure at the front. This lace closure mimics the natural hairline, giving the illusion of a natural scalp. The 4x4 measurement refers to the size of the lace closure, which is typically placed at the top front of the wig.   The lace closure is made of a thin, sheer lace material that is attached to the front of the...