TruForm clay sculpture armatures are widely becoming one of the best tools for sculpting in oil-based and polymer clays.TruForm armatures were created by professional sculptors with the goal of providing clay modeling sculptors of all levels with the most innovative sculpture armature concept on the market. TruForm armatures are proven to enhance the entire sculpting experience. Life-size portrait busts are here! Our life-size portrait bust can be easily glued or attached to any baseboard. The skull is taken down,pushed back and opened up in key areas of the skull for the application of clay. The base can be easily cut to your desired shape. TruForm Armature busts are made of urethane foam and a durable plastic. The head and ribcage can be altered by using a round file, if necessary, during the gestural phase.