All Surreal Faces are cast from an original sculpture with strong plaster of paris. They range in size from 4-6" and are approximately .5" thick. It is recommended to paint with a primer prior to applying color. When finished they can be mounted to a canvas like I do or thick double sided tape will adhere them to a wall. Have fun and please send me a sculpture name and photo of your finished product for posting on a page dedicated to customer work.