This is a rare item; a collapsing nail used to perform the Blockhead effect of shoving a nail up your nose. Very well made. Once gone, no more will be made.
Performer shows what appears to be a large aluminum nail. He proceeds to pound the nail up his nose with a hammer. The nail seems to enter several inches up the nose. He then pulls the nail out to the horror of those watching.
Very realistic and bizarre looking. Top quality prop.