I used 1- 4 clip weft and 1- 3 clip weft for my daughter’s wedding. The others have not been open/used. Crafted with the highest quality human hair Up to 30%* thinner and virtually undetectable with Invisi-Weft® technology More comfortable, longer lasting, and less shedding than traditional hair extensions 100% Remy Human Hair *Up to 30% thinner than BELLAMI standard clip-in wefts with Invisi-Weft® technology. Due to the natural variance in human hair, exact weights may vary slightly. ***box it was packaged in, is ripped, but all 5 extensions are in excellent condition ***