Hair weft (aka hair tracks, hair bundles or hair weave), refers to a collection of hair strands attached to a thin base material that can be woven into the natural hair to create fuller, longer locks. Youngsee hair weft is made of 100% real human hair extensions, which can last 6-12 months. There are a variety of colors to choose from. The hair weft is easy to wear, There are 4 ways to install: directly sew; with micro rings; with glue; with clips. It is the best-selling hair extension in our store.