You'll need more than 20pcs as they are thin [SEP] Good quality real human hair. Easy to put on. I washed my hair, “sandwich” the extensions, and then used the flat iron just for a second to melt the glue and to blend the extensions better with my natural hair. I’ve got a blonde color T18/60 + 60# in size 16 inches. The hair color doesn’t match my natural hair 100%, but it doesn’t look bad when the hair is blended. Please note that there's not much hair in the package (20pcs but the hair is thin) so you'll need more than one pack.