This handsome brass number puzzle offers a brain-twisting challenge. Arrange the twelve numbers in order by rotating them around the dial and using the turnstiles to swivel the digits into place. Forged out of solid brass, Tom's Turnstile is a stand out in any puzzle collection—well-made, timeless and extremely challenging. The Turnstile also makes a great makes a great introduction to the world of mechanical puzzles for anyone interested in numbers. Designed by Tom Cutrofello.