Write on-wipe off puzzle book features 100 puzzles. Includes puzzle book with write on-wipe off erasable pen. Includes 12 blocks - 1 inch lady bug, 2 inch frog, 3 inch mouse, 4 inch rabbit, 5 inch penguin, 6 inch tiger, 7 inch bear, 8 inch snake, 9 inch monkey, 10 inch ostrich, 11 inch elephant, 12 inch giraffe. Designed to be used at home, in the classroom or on the go. Recommended minimum age of 3.