Material: Human HairLength: 16/18/20/22/24inchNet Weight: 1g/strand| 50strand/pack=50g/packFeature: 1.Our human hair extensions are real and natural, without the need for heating or glue, making them easy to apply and remove without damaging your own hair.2.It can be straightened, curled, washed and dyed to darker color with professional dyeing process. In the process of styling, please note that the temperature should not exceed 180 degrees Celsius. 3.Applying method: With micro beads around 0.3cm away from the scalp, then use a pliers clamp it. Without any glue during applying which will not harm your own hair. After installing about a week, please clamp your hair with pliers again to extend the use time.