Invisi-Tab Hair Extensions offer women longer locks and can also be used to add volume. For women with thin or thinning hair, the extensions can fill in spots to make hair fuller or conceal areas where hair has fallen out. In addition, Invisi-Tab Hair Extensions can also be used to highlight hair. Simply add a few pieces in a shade lighter or darker depending on desired hue to add dimension. Hair is attached with a surgical grade tape and remains in the hair for 2 months til you come in and have them moved up.