A black box Kelly is an Excellent choice for night Rockerchic! Kellys come in 25cm (and smaller), 28cm, 32cm and 35cm (and I think up to 40?). So I would go for either a 28cm or a 32cm. But wait until you get your kelly so you can gauge what size you want for sure. I am 5'1" and would love a 28cm!!!