This is a hand blocked cown-brim combination hat frame. Brim 311 has a sloped 1.5 "back and 2.5" front and sides. Crown 138 has a 2" back, 4.5 inch front and , 2" and 3" side. This buckram hat frame is for those in the hat making busines or anyone interested in learning the art of hat making. This frames is considerd unfinished because it is not covered with fabric or other material. It is part of the Buckram Hat Frames Collection offered through Kay's Art of Millinery.