Well, she comes in two characters... in duodecimal! 77 (Seven-Do-Seven (AKA Ninety-One in Dozenal)) - She has a white/red step mask, has rainbow hair like the Decimal 7, has rainbow limbs like the Decimal 70, pink lips, pink eyelids, white socks, and grey shoes. She is a mix of Decimal 91, 11, and 77 and is a persnickety football player who has OCD. She keeps her "Decimal Ninety-One" voice as well. 91 (Nine-Do-One (AKA 109 in Dozenal)) - She has grey/red japanese human eyes, a ying-yang thing on her head, grey/red pants, grey/red sleeves, and a knot-belt. She is a mix between decimal 91 (OCD), 109 (She is decimal 109's Cousin and is fond of Kung Fu) and 12 (She prefers peace and quiet).
DISCLAIMER: I don't own Numberblocks.