13x4 silk base lace frontal closure brazilian straight hair pieces human hair invisible part 4x4 durable 3 layers 10-20inch bellahair, Black;brown

13x4" lace with 4x4" middle silk base natural black human hair body wave with baby hairs material:100% virgin hair,swiss lace:13x4"ear to ear,comfortable silk feature:hand made,comfortable,no shedding,no tangle,natural black color it can be straightened, curled, and styled as you wish. part design allows you to customize the hairline and make it middle/3/side part. it's slightly bleached double knots with the natural hairline and baby hair, creating a natural look that hair is coming from scalp..syi