Approx. 2 1/2 x 8" high black painted wooden chimney, a fancy brass rod and 1 7/8" wooden block w/a hole thru it. The block is dropped into the chimney, visible thru the bottom holes and the top holes. The rod is pushed thru the block and traps it inside the chimney. You pick up the chimney and hit it on a spectators hand & the block falls from the rod and into their hand. Only one block is used! Mechanical perfection! Instr. on use is included!