Comes with one set of Ashika Adult Hairline Protectors. Instructional Video Link Included via your email upon purchase.Meant for partial hair installations. These brilliant units fit regular to large adult scalps. For partial hair installations of machine wefted hair extensions. They protect and safely fill in fine to damaged hairlines without the use of tapes or adhesives. Designed to easily reach the scalp to apply therapeutic oils or balms. Lined with a fine silk lace inside and outside of the perimeter for ventilating baby hairs as well as functionality and durability. You can use these units to create a full look with hair left out at the crown.