Very nice little baby you have there. And welcome to the forum!!
Do you have all the details on care? High humidity, temps around 77 etc?
As you will find out, BRB's are addictive, one seams to lead to another and another etc.etc. While they get large (6 plus feet long) they don't get huge. Never to a point where it requires two people to handle one snake. When kept properly, they are drop dead gorgeous, all shinny and irridescent.
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Thanks,
Dave Colling

www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count:
19.29 BRB
13.18 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 