12 Days of Christmas Wentworth Puzzles offers festive puzzling fun. It contains twelve 34-40 piece puzzles inspired by best sellers, great to enjoy during the holiday season. Shaped, grid cut, and extra difficult puzzles with whimsies provide variety. It's beautifully presented in an emerald green advent calendar with gold foil detailing, and numbered drawers show the image of the puzzle on the back. This wooden puzzle advent calendar makes a unique gift for puzzle lovers and a treasured keepsake.