This Pro Extensions clip in hair extension set is Colored #1B, OFF BLACK. Pro Extensions are 100% human hair extensions. This set of hair extensions is 10" long and 39" wide. This hair extensions set is Grade A, Color #1B, OFF BLACK. The set weight is 50 grams. This set of extensions is straight without any body wave. Pro Extensions Volumizer is specialized to add volume or texture to your current hair style. The extensions can be styled effortlessly as easy as your own human hair and will blend seamlessly into your own hair style.