Micro loop ring extensions can be easily applied : no glue, no heat, no damage, easy and safe to attach and remove These hair extensions are made of Belle Noir Beauty premium quality hair. It can be blended naturally with your own hair for length and volume. Usually, 100-150 strands is enough for a full head. The hair can be washed, curled or straightened. Hair has been dyed. It can be colored too darker shades. 50 strands/pack (1-2 packs for highlight or lowlight, 2-3 packs for a full head attachment)