This puzzle may very well be the world's most advanced mousetrap - no cheese needed. A handsomely crafted and complex system of four rings locks the mouse through its string tail into the trap. You will need to be extra clever to release the mouse from the wooden rings but if you�re not feeling extra clever at all, you can just take some scissors and cut the string and. If you don't want the mouse roaming free around the house, take the re-trapping challenge by catching its tail in the rings. The dimensions are 6 2/3" x 2 3/4" x 6"