What age should a ball be full grown?

I have had my snake for a few weeks and i was wondering how many years it would take for my male ball to be full grown?heres a nice pic of him
http://i12.photobucket.com/albums/a2...t/snake003.jpg

Cute baby!

Typically ball pythons grow a foot a year for the first 2-3 years, then they slow down. The answer varies with your feeding schedule, but they're mostly grown after around 4 years. Males do not attain the larger sizes that females do.