Frank s range of 1000 pieces jigsaw puzzles is suitable not only for older children, but also for those who are looking for a challenge. The puzzles are based on a wide variety of themes, such as famous buildings, animals, nature, and others. Assembling jigsaw puzzles is a wonderful way to sharpen one s mind and focus. It is also an ideal group activity with family and friends. The puzzles measure 70.5 X 47.5 Cm when completed.