Here, as transmitted, in the dative singular. Hesychius kappa4771 has nominative plural kw/baloi glossed as ku/tinoi r(oiw=n ("pomegranate flowers") and, as kappa4770, neuter plural kw/bala glossed as panourgh/mata ("knavish tricks"); for the latter cf. kappa 1897.
[1] Not, in fact, in anything of his that is extant; it is nevertheless admitted by Kassel-Austin as fr. 948, in the 'dubious' category.