Need help with Repeat last row for 6G ins

Hi, does any body know what this means. Repeat last row for 6G ins [16]. It’s for a pair of chocheted baby booties.

Thanks

Welcome to KH. Can you post a link to the pattern please. If not, just a couple lines from it might help.

Welcome to KnittingHelp!
I think this might be the pattern:
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CCQQFjAB&url=http%3A%2F%2Fcom.yarnspirations.pattern-pdfs.s3.amazonaws.com%2FBernat_HandicrafterBaby001_cr_bibsbooties.en_US.pdf&ei=_wR1VNqJJ4TGsQSRu4LQBg&usg=AFQjCNExdsblAtgiRjaV-kwq8CVS-Tw8eQ
I’d go with the measurement in cm, 16cm which is close to 6inches. Maybe the “G” is a typo or some character transferred from another font.