I would say 0-3 months for size. There are some rough measurements in the pics here...
http://s1122.photobucket.com/albums/l535/jgilene1/wool/ Posting this from my phone so this may not work.
They are made from 100% wool and dyed with kool-aid.
I can measure them more if want.
Mama to Dillon '10 and Wyatt '12