This is a resin skull with high quality detail that gives this piece a carved appearance.
SMALL LUCKY 13 TOP HAT RESIN SKULL, hand painted,flat bottom It measures 2 3/4" tall. ✖ Most of our knobs are flat on the bottom and undrilled. The buyer is responsible for drilling this to custom fit their needs. Instructions we like can be found here" http://www.ehow.com/how_5824622_tap-resin-shifter-knobs.html