Submarines and U-Boats jigsaw puzzle, 1,000 pieces. The underwater world, ever fascinating and dangerous. Learn about these fantastic engines that are submarines like USS Virginia, USS Typhoon, U-99 and K-141 Kursk. More than 20 submarines are illustrated on this jigsaw puzzle, 1,000 pieces. Features: 1,000 pieces, Dimension: 26.5 x 19.25 inches, Superior-quality piece by piece, Perfect and easy-fit puzzle pieces, Strong high-quality unbreakable puzzle pieces, Made from recycled board, Image printed on recycled paper, Ink is vegetable based. This superior quality puzzle will delight and educate all at the same time.