Riki European Texture Human Hair This boy cut is very smart for today's working woman. Tailored to suit your busy schedule in Hairlife Human Hair Blend. The following colors are available for Riki: 1B, 2, 4, 6, 8, 16, 27, 30, 32, 33, 330, 32-4, 32-6, 33-4, 33-6, 34, 38, 40, 44, 51, 56, 18/22, 18/24, 6-2, 8-2, 8-4, 8-6, 0-4, 10-6, 10-7, 12-6, 12-7, 12-8, 14-8, 14-12, 16-8, 16-10, 16-18, 16-14-12, 24-14/12B, 60-51, 41, 400, 410, 420, 430, 440, 460, 470, 480, 490, 500, 405, 510, 515, 16-22, 640, 30-8/6B, 329, 525, 10-8/6B.