It's easy to create fun puzzles that pop. Complete the two 24-piece safari and ocean jigsaw puzzles, then fill in the color-coded pictures with a matching colored marker (markers not included). Use the included 3-D glasses to transform the puzzles into multi-dimensional scenes. When filled in, warm colors like red and orange will come forward, while cool colors like blue and green recede into the background, giving a 3-D look. Kids four and older will love putting together the 3-D jigsaw puzzles over and over.