I bought this clip in hair extensions for short term use. So whether they will last for a long time or not have no business to do me. I put on it several times and now they all keep in good shapes. The total weight of it is 90 grams, appropriately adding volume to my natural hair. With soft, silky touch and shiny looking, I thought that this set of clip in hair extensions meet my requirement. Anyway, I can not demand much because it is a set of clip in hair extensions whose price was only $59.99.