From the publisher: Sumo wrestle anytime, anywhere with the ultimate Japanese wind up game! In its very first US release, Tomy Classics: Sumo Smash combines old school style with timeless fun.Wind up your wrestler and cheer him on in possibly the maddest sport of all. The first wrestler to force his opponent out of the ring or knock him down wins!Great for travel - comes with its own stow-n-go carrying case. 6-1/2x5-1/4'. Ages 5 and up. - BoardGameGeek